Abstract
This paper uses the diffusion of innovations theory to analyse the role played by change agents, opinion leaders, champions, social network links and re-invention in the diffusion of GIS technology in a developing country, Uganda. Understanding the roles played by each of these elements leads to a more complete picture of the diffusion process of information systems, particularly within the context of the developing world. Mixed methods were used for data collection and analysis. Diffusion of innovations theory was employed in the analysis and a comparison made with the Universal Theory of Acceptance and Use of Technology. The findings indicate that change agents, opinion leaders, champions, social network links, and re-invention play a significant role in the diffusion of GIS technology in Uganda. The paper makes a contribution to the literature on GIS diffusion in developing countries.
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AlGhamdi, R., Nguyen, A., Nguyen, J., & Drew, S. (2012). Factors influencing E-commerce adoption by retailers in Saudi Arabia: A quantitative analysis. International Conference on Internet Studies,8(1), 83–100.
Antenucci, J. C., Antenucci, R., & Smith, J. W. (2010). Private sector applications. In J. D. Bossler, J. B. Campbell, R. B. Mcmaster, & C. Rizos (Eds.), Manual of Geospatial Science and Technology (pp. 761–776). Boca Raton, FL: CRC Press.
Apunyo, R. (2006). Managing wetlands with changing times-Uganda’s experience. Kampal, Uganda. Available at http://archive.riversymposium.com/2005/index.php?element=06APUNYORobert.
Balogun, E. E. (2004). Milestones and challenges of ARCSSTE-E. In 47th Session of the United Nations Committee on the peaceful uses of outer space (COPUOS), June 2–11, 2004, Vienna, Austria (p. 33). Vienna, Austria: United Nations Committee on the Peaceful Uses of Outer Space (COPUOS). Available at http://www.oosa.unvienna.org/pdf/sap/centres/ARCSSTE-E.pdf.
Baryamureeba, V., & Nerbonne, J. (2011). NUFFIC: Strengthening ICT training and research capacity in the four Public Universities in Uganda, Final Project Report. Kampala, Uganda. Available at http://news.mak.ac.ug/documents/cit/NufficIIFinalProjectReport.pdf.
Bos, E., Muhweezi, A., & West, K. (2005). From conversion to conservation: Fifteen Years of managing wetlands for people and the environment in Uganda. Kampala, Uganda; Nairobi, Kenya: Kampala, UG: Wetlands Inspection Division; Nairobi, KE: IUCN, Eastern Africa Regional Programme. Available at https://portals.iucn.org/library/node/8899.
Cavric, B. I., Nedović-Budić, Z., & Ikgopoleng, H. G. (2003). Diffusion of GIS technology in Botswana. The Interdisciplinary Design and Research e-Publication (IDRP),25(2), 195–219.
Cho, Y., Hwang, J., & Lee, D. (2012). Identification of effective opinion leaders in the diffusion of technological innovation: A social network approach. Technological Forecasting and Social Change.,79(1), 97–106. https://doi.org/10.1016/j.techfore.2011.06.003.
ClarkLabs. (2015). Clark Labs: Geospatial software for monitoring and modeling the Earth system, Clark Labs: Geospatial software for monitoring and modeling the Earth system. Available at http://www.clarklabs.org/. Accessed July 3, 2015.
Convery, M., & Ives-Dewey, D. (2008). Champions of GIS: Municipal implementation and organizational diffusion of GIS in Pennsylvania Governments. Middle States Geographer, 41, 9–18. Available at http://digitalcommons.wcupa.edu/geog_facpub/13.
Corbin, J., & Strauss, A. (2008). Basics of qualitative research (3rd ed.). Thousand Oaks, CA: SAGE Publications Ltd.
Coulson, M. R. C., & Waters, N. M. (1991). Teaching the NCGIA curriculum evaluation program: A review and assessment. Cartographica,28(3), 94–102.
Creswell, J. W. (2011). When should I choose a mixed methods approach?, Sage research methods. London: Sage Publications Ltd. https://doi.org/10.4135/9781412993722.
Dewey, J. (1938). Logic: The theory of inquiry. New York: Henry Holt and Co.
Drichi, P. (2002). National biomass study, population (English ed.). Kampala: Forest Department.
Eria, S. (2012). The State of GIS in Developing Countries: A Diffusion and GIS & Society Analysis of Uganda, and the Potential for Mobile Location-Based Services. Ph.D. Dissertation. University of Minnesota—Twin Cities. Available at https://conservancy.umn.edu/handle/11299/142282.
Eria, S., & McMaster, R. B. (2017). ‘GIS diffusion in Uganda. International Journal of Geographical Information Science,31(5), 884–906. https://doi.org/10.1080/13658816.2016.1242131.
ESRI. (2015). Environmental Systems Research Institute, ESRI. Available at http://www.esri.com/. Accessed July 3, 2015.
Foster, C., & Heeks, R. (2013). Innovation and scaling of ICT for the bottom-of- the-pyramid. Journal of Information Technology,28(4), 296–315. https://doi.org/10.1057/jit.2013.19.
GIC. (2010). SDI Presentation to GEO-IM Working Group (pp. 1–10). Kampala.
GIC and ESRI-Canada. (2010). First interim report: Technical assistance for spatial data infrastructure development outcomes, Uganda, Development. Toronto, Canada and Kampal, Uganda.
Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. London: Wiedenfeld and Nicholson. Available at http://books.google.com/books?hl=en&lr=&id=rtiNK68Xt08C&oi=fnd&pg=PA1&dq=Glaser+and+Strauss+1967&ots=UUxY_jZKXK&sig=eMaOJDzBXJRikZcOMnCcixBx4QU#v=onepage&q=GlaserandStrauss1967&f=false.
GoU. (2005). The Local Governments (Amendment) Act, 2005. Uganda: Government of Uganda.
GoU and UNFPA. (2010). The state of Uganda population report 2010, Population (English ed.). Kampala, Uganda. Available at http://www.popsec.org/publications_3_1868272171.pdf.
Goulet, L. R., & Frank, M. L. (2002). Organizational commitment across three sectors: Public, non-profit, and for-profit. Public Personnel Management,30(2), 201–210. https://doi.org/10.1177/009102600203100206.
Gouws, Tina, & Van Oudtshoorn, G. P. R. (2011). Correlation between brand longevity and the diffusion of innovations theory. Journal of Public Affairs,11(4), 236–242.
Hall, R. H. (1987). Organizations: Structures, processes, and outcomes (4th ed.). Englewood Cliffs, NJ: Prentice-Hall Inc.
Iyengar, R., Van den Bulte, C., & Valente, T. W. (2011). Opinion leadership and social contagion in new product diffusion. Marketing Science,30(2), 195–212. https://doi.org/10.1287/mksc.1100.0566.
Kerski, J. J. (2008). Geographic information systems in education. In J. P. Wilson & S. A. Fotheringham (Eds.), The handbook of geographic information science (pp. 540–556). Malden, MA: Blackwell Publishing.
Kim, C., & Baylor, A. L. (2008). A virtual change agent: Motivating pre-service teachers to integrate technology in their future classrooms. Educational Technology and Society,11(2), 309–321.
Lo, C. P., & Yeung, A. K. W. (2007). Concepts and techniques in geographic information systems. Upper Saddle River, NJ: Pearson Education Inc.
Lwasa, S., Bamutaze, Y., Karatunga, A., Muhwezi, B. J., Mukwaya, P., & Sjaak, D., et al. (2006). National spatial data infrastructure workshop. In National spatial data infrastructure workshop, 7th June 2006, Faculty of Computing and Information Technology, Makerere University, Kampala, Uganda (pp. 1–29). Kampala: Makerere University.
Masser, I., & Craglia, M. (1996). A comparative evaluation of GIS diffusion in local government in nine European Countries. In I. Masser, H. Campbell, & M. Craglia (Eds.), GIS diffusion: The adoption and use of geographical information systems in local government in Europe (pp. 211–228). London: Taylor & Francis.
Mooneyhan, W. D. (1998). International Applications of GIS. In T. W. Foresman (Ed.), The history of geographic information systems: Perspectives from the Pioneers (pp. 349–366). Upper Saddle River, NJ: Prentice-Hall Inc.
Muhwezi, B. J. (2006). Solving complexities in implementation of SDI in Uganda, Development. Kampala, Uganda. Available at http://www.ugandaclusters.ug/geo-im.htm.
Musinguzi, M. (2003). Spatial data infrastructure—A new challenge for GIS application in Uganda. Mukono, Uganda.
Mustaffa, N., Ibrahim, F., Mahmud, W. A. W., Ahmad, F., Kee, C. P., & Mahbob, M. H. (2011). Diffusion of innovations: The adoption of Facebook among youth in Malaysia. The Innovation Journal: The Public Sector Innovation Journal,16(3), 1–15.
Myers, S., Zhu, C., & Leskovec, J. (2012). Information diffusion and external influence in networks. In KDD’12 The 18th ACM SIGKDD international conference on knowledge discovery and data mining (pp. 1–9). Beijing, China: ACM. https://doi.org/10.1145/2339530.2339540.
NAPE. (2009). Oil Economy. In NAPE Lobby, June, (pp. 1–24).
Noongo, E. N. (2007). The Implementation of Geographic Information Systems in Namibia. Joensuu: Social Science Publications, University of Joensuu, Sweden. Available at http://joypub.joensuu.fi/publications/frameappl/pdf.php?pdf=dissertations/noongo_implementation/noongo.
NPA. (2010). National Development Plan (2010/11–2014/15), Development. Kampala: Government of Uganda.
NPA. (2015). Second National Development Plan (NDPII), 2015/2016–2019/20 (p. 315). Kampala: National Plannig Authority, Government of Uganda. Available at http://npa.ug/wp-content/uploads/NDPII-Final.pdf.
NRC. (2002). Down to earth: Geographical information for sustainable development in Africa. Washington, DC: National Academies Press.
Olafsson, A. S., & Skov-Petersen, H. (2014). The use of GIS-based support of recreational trail planning by local governments. Applied Spatial Analysis and Policy,7(2), 149–168. https://doi.org/10.1007/s12061-013-9094-7.
Ribot, F. (1989). Télédétection en Afrique subsaharienne, bilan régional. In Télédétection en Francophonie, (AUPELF-UREF, John Libbey Eurotext, Paris) (pp. 17–34). Available at http://www.francophonie.org/.
RMCA. (2015). Earth Sciences, Royal Museum for Central Africa. Available at http://www.africamuseum.be/museum/research/natural-sciences/earth-sciences/index_html. Accessed July 5, 2015.
Rogers, E. M. (1993). The diffusion of innovations model. In I. Masser & H. J. Onsrud (Eds.), Diffusion and use of geographic information technologies (pp. 9–24). Dordrecht: Kluwer Academic Publishers.
Rogers, E. M. (1995). Diffusion of innovations (4th ed.). New York, NY: The Free Press, A Division of Macmillan Inc.
Rogers, E. M. (2003). Diffusion of innovations (5th ed.). New York: Free Press.
Stanely, R. (2012). Finding Success on the Oil Frontier, New York Times. Available at https://www.nytimes.com/2012/07/04/business/global/tullow-oil-finds-success-exploring-where-others-dont.html?pagewanted=all. Accessed May 27, 2018.
Starling, G. (2011). The Nature of Public Administration. In Merrill, C. (Ed.), Managing the Public Sector. (9th ed., pp. 1–48.). Boston, MA: Wadsworth, Cengage Learning. Available at https://books.google.com/books?id=CdAEAAAAQBAJ&printsec=frontcover&dq=editions:cNUA0SJgywEC&hl=en&sa=X&ei=R9wpVbyMIo_0oASxtYGQBw&ved=0CB0Q6AEwAA#v=onepage&q&f=false.
Sui, D. Z., & Morril, R. (2004). Computers and geography: From automated geography to digital earth. In S. D. Brunn, S. L. Cutter, & J. W. Harrington Jr. (Eds.), Geography and technology (pp. 81–109). Dordrecht: Kluwer Academic Publishers.
Tashakkori, A., & Teddlie, C. (Eds.) (2003). Handbook of mixed methods in social and behavioral research. SAGE. Available at http://books.google.com/books?hl=en&lr=&id=F8BFOM8DCKoC&pgis=1. Accessed December 24, 2011.
Taylor, F. D. R. (1986). Computer assisted cartography in developing nations. In AutoCarto—Digital mapping and spatial information systems: Proceedings of the international conference on the acquisition, management and presentation of spatial data (Vol. 2, pp. 462–471). Available at http://mapcontext.com/autocarto/proceedings/auto-carto-london-vol-2/pdf/computer-assisted-cartography-in-developing-nations.pdf.
Taylor, F. D. R. (1998). Modern cartography, policy issues and the developing nations: Rhetoric and reality. In F. D. R. Taylor (Ed.), Policy issues in modern cartography (pp. 185–214). Oxford: Elsevier Science Ltd.
Tchindjang, M., Menga, V. F., Makak, J. S., Nghonda, J. P., Nziengui, M., & Edou, M. (2005). Remote sensing in Africa: Mapping approach and perspectives. In Proceedings of the 22nd international cartographic conference (ICC), Coruna, Spain, July 9–16, 2005 (p. 10). Coruna, Spain. Available at http://icaci.org/documents/ICC_proceedings/ICC2005/htm/oral.htm.
Tolba, A., & Mourad, M. (2011). ‘Individual and cultural factors affecting diffusion of innovation. Journal of International Business and Cultural Studies,5(1), 203–218. https://doi.org/10.1057/palgrave.jibs.8400377.
Toppen, F. J. (1991). GIS eduction in the Netherlands: A bit of everything and everything about a BIT? Cartographica,28(3), 1–9.
Touzani, A. (2006). Activités du Centre R Régional Africain des Sciences et Technologies de l’Espace en Langue Française (CRASTE CRASTE-LF). In 49ème Session du Comité des Utilisations Pacifiques de l’Espace Extra—AtmosphAtmosphérique, Vienna, Austria, June 7–16, 2006 (pp. 1–35). Vienna: United Nations Committee on the Peaceful Uses of Outer Space (COPUOS). Available at http://www.oosa.unvienna.org/pdf/pres/copuos2006/10.pdf.
Turyareeba, P., & Drichi, P. (2001), Plan for Development of Uganda’s Biomass Energy Strategy, Energy Policy. Kampala, Uganda.
UgandaParliament. (2016). Oil production to start in 2020, Parliamentary News. Available at http://www.parliament.go.ug/new/index.php/about-parliament/parliamentary-news/1072-oil-production-to-start-in-2020. Accessed May 27, 2018.
UgandaWetlands, UBOS, ILRI, & WRI. (2009). Mapping a better future: How spatial analysis can benefit wetlands and reduce poverty in Uganda, Wetlands. Kampala, Uganda and Washington, DC, USA.
UNEP. (1972). Report of the United Nations conference on the Human Environment, United Nations Environmental Programme—Environment for Development. Available at http://www.unep.org/Documents.Multilingual/Default.asp?documentid=97.
USDoS. (2008). Global dialogues on emerging science and technology (GDEST). Washington, DC. Available at http://www.state.gov/documents/organization/131084.pdf.
Valente, T. W. (2005). Network models and methods for studying the diffusion of innovations. In P. J. Carrington, J. Scott, & S. Wasserman (Eds.), Models and methods in social network analysis (pp. 98–116). Cambridge: Cambridge University Press. https://doi.org/10.1017/cbo9780511811395.006.
Van Eck, P. S., Jager, W., & Leeflang, P. S. H. (2011). Opinion leaders’ role in innovation diffusion: A simulation study. Journal of Product Innovation Management,28(2), 187–203. https://doi.org/10.1111/j.1540-5885.2011.00791.x.
Venkatesh, V., Morris, M. G., Davis, G. B., & Davis, F. D. (2003). User acceptance of information technology: Towards a unified view. MIS Quarterly,27(3), 425–478.
Vonk, G., Geertman, S., & Schot, P. (2007). New technologies stuck in old hierarchies: The diffusion of geo-information technologies in Dutch Public Organizations. Public Administration Review, 67(4), 745–756. Available at http://www.jstor.org/stable/4624622.
Wang, A., Redington, L., Steinmetz, V., & Lindeman, D. (2011). The ADOPT model: Accelerating diffusion of proven technologies for older adults. Ageing International,36(1), 29–45. https://doi.org/10.1007/s12126-010-9072-1.
Weisfeld-Spolter, S., & and Thakkar, M. (2011). Is a designer only as good as a star who wears her clothes? Examining the roles of celebrities as opinion leaders for the diffusion of fashion in the US teen market. Academy of Marketing Studies Journal, 15(2), 133–144. Available at http://www.alliedacademies.org/articles/amsjvol15no22011.pdf.
West, R. E., Waddoups, G., & Graham, C. R. (2007). Understanding the experiences of instructors as they adopt a course management system. Educational Technology Research and Development,55(1), 1–26. https://doi.org/10.1007/s11423-006-9018-1.
Wirth, W., Von Pape, T., & Karnowski, V. (2008). An integrative model of mobile phone appropriation. Journal of Computer-Mediated Communication,13(3), 593–617. https://doi.org/10.1111/j.1083-6101.2008.00412.x.
WorldBank. (2014). Updated income classifications, data. Available at http://data.worldbank.org/news/2015-country-classifications. Accessed April 9, 2015.
WorldBank. (2017). Uganda, country data: Uganda. Available at http://data.worldbank.org/country/uganda.
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Appendix 1: The influence of change agents, funding agencies, opinion leaders and champions at Ugandan institutions, 1989–2010
Appendix 1: The influence of change agents, funding agencies, opinion leaders and champions at Ugandan institutions, 1989–2010
ID | Institution name | Change agent | Funding agency | Opinion leader | Champion |
---|---|---|---|---|---|
1 | National Environment Information Centre (NEIC) | UNEP-GRID | WB | Y | Y |
2 | National Forestry Authority (NFA) | NFP | NORAD | Y | Y |
3 | Wetlands Management Department (WMD) | IUCN | GoN | Y | Y |
4 | Makerere University, Department of Surveying | EEA, GIC, MUIENR | PBF | Y | Y |
5 | Makerere University, Institute of the Environment and Natural Resources (MUIENR) | UNEP-GRID | WB | Y | Y |
6 | Department of Surveys and Mapping (DoSM) | GCo, FCo, JCo | WB | N | Y |
7 | Computer Aided Mapping Project Uganda Surveys Project (CAMPUS) | FCo | WB | N | Y |
8 | Famine Early Warning System Network (FEWSNET) | CI | USAID | N | N |
9 | Uganda Wildlife Authority (UWA) | GTZ | USAID | N | Y |
10 | Department of Geological Survey and Mines (DoGSM) | SDSA, CCo | WB, ADB, NDF, GoB, UNDP | N | Y |
11 | Makerere University, Department of Geography | ITC | ITC | Y | Y |
12 | National Water and Sewerage Corporation (NW&SC) | GTZ | GoG | N | Y |
13 | National Agricultural Research Laboratories (NARL) | NEMA | WB, GEF, GoU | N | Y |
14 | Makerere University, Department of Forestry | NFA | NFA | Y | Y |
15 | Mobile Telecom Network Uganda (MTN) | 0 | PF | N | N |
16 | Northern Uganda Data Centre (NUDC) | EEA | PMO, UNDP, GTZ, WB, GoI | Y | Y |
17 | Uganda Bureau of Statistics (UBOS) | EEA | MoF | Y | Y |
18 | USAID | OS, GIC, EEA | USAID | Y | Y |
19 | GeoInformation Communication (GIC) | EEA | PF | N | Y |
20 | Uganda National Roads Authority (UNRA) | SACo | WB, EU, ADB | Y | Y |
21 | Ministry of Agriculture, Animal Industries and Fisheries (MAAIF), Cartographic Office | IAEA | IAEA, ADB, FAO | N | Y |
22 | Kampala City Council (KCC) | MUDG | WB | Y | Y |
23 | Makerere University, Faculty of Computing and Informatics Technology (MUFCIT) | UU | NUFFIC | N | Y |
24 | Umeme | UmSA | PF | Y | Y |
25 | WE-Consult | DCo | PF | N | N |
26 | Tullow Oil, Uganda | EEA | PF | Y | Y |
27 | Office for the Coordination of Humanitarian Affairs, Gulu (OCHA) | UNHCR, UNO CHA, GIC | UNOCHA | Y | Y |
28 | United Nations OCHA, Kampala (UNOCHA) | GIC, EEA | UNOCHA | N | Y |
29 | Infectious Disease Institute (IDI) | KCC | Pfizer, PEPFAR, CDC | Y | Y |
30 | Center for Disease Control (CDC), Uganda | EEA, ESA | PEPFAR, CDC | Y | Y |
31 | World Wide Fund for Nature (WWF) | GIC | WWF | N | Y |
32 | NatureUganda | FE | PF | Y | Y |
33 | Spring, USAID Project | FE | USAID | Y | Y |
34 | Northern Uganda Malaria and Tuberculosis (NUMAT), USAID Project | GIC | USAID | Y | Y |
35 | Mbarara University, Department of Computer Science | MUFCIT | NUFFIC | Y | Y |
36 | Mbarara Police | MUDCS | NUFFIC | Y | N |
37 | Gulu University, Department of Computer Science | GIC | WCS, NUFFIC, USAID | Y | Y |
38 | Department of Petroleum Exploration and Production (DPEP) | GIC | MEMD | N | Y |
39 | Kyambogo University, Department of Computer Science | CE | NUFFIC | Y | Y |
40 | Nokia Siemens Networks | 0 | Private | N | N |
41 | UNICEF | FE | UNICEF | N | N |
42 | ACODE | NA | NA | NA | NA |
43 | FXB Uganda Program | NA | NA | NA | NA |
44 | BIN-IT Services Ltd | NA | NA | NA | NA |
45 | Uganda Land Alliance | NA | NA | NA | NA |
46 | National Association of Professional Environmentalists (NAPE) | NA | NA | NA | NA |
47 | Uganda National Health Research Organization (UNHRO) | NA | NA | NA | NA |
48 | TourGuide Publications | NA | NA | NA | NA |
49 | Central Police Station | NA | NA | NA | NA |
50 | MAP (U) Ltd | NA | NA | NA | NA |
51 | Mitland (U) Ltd | NA | NA | NA | NA |
52 | GeoMaps Africa Ltd | NA | NA | NA | NA |
53 | National Planning Authority (NPA) | NA | NA | NA | NA |
Acronym | Full name of change agent or funding agency | Acronym | Full name of change agent or funding agency |
---|---|---|---|
ADB | African Development Bank | CDC | Center for Disease Control |
CI | Chemonics International | EEA | ESRI Eastern Africa |
ESA | ESRI South Africa | EU | European Union |
FAO | Food and Agricultural Organization | FE | Former Employee |
GCo, | German Company, | GEF | Global Environment Facility |
FCo, | French Company, | ||
JCo, | Japanese Company, | ||
CCo, | Canadian Company, | ||
SACo, | South African Company, | ||
DCo | Dutch Company | ||
GIC | GeoInformation Communication | GoB | Government of Belgium |
GoG | Government of Germany | GoI | Government of Italy |
GoN | Government of The Netherlands | GoU | Government of Uganda |
GTZ | German Technical Services | IAEA | International Atomic Energy Agency |
ITC | Faculty of Geo-Information Science and Earth Observation, University of Twente, The Netherlands | IUCN | International Union for Conservation of Nature |
MEMD | Ministry of Energy and Mineral Development (Government of Uganda) | MoF | Ministry of Finance (Government of Uganda) |
MUDCS | Mbarara University Department of Computer Science | MUDG | Makerere University Department of Geography |
MUFCIT | Makerere University Faculty of Computing and Informatics Technology | MUIENR | Makerere University Institute of Environment and Natural Resources |
NDF | Nordic Development Fund | NFA | National Forestry Authority (Uganda) |
NFP | Norwegian Forestry Program | NORAD | Norwegian Agency for Development Cooperation |
NUFFIC | Netherlands Organization for International Cooperation in Higher Education | OS | Oakar Services |
PBF | Project-Based Funding | PEPFAR | President’s Emergency Plan for AIDS Relief |
PF | Private Funding | PMO | Prime Minister’s Office (Government of Uganda) |
SDSA | Spatial Dimension South Africa Pty Limited | UmSA | Umeme South Africa |
UNDP | United Nations Development Program | UNEP-GRID | United Nations Environment Program - Global Resource Information Database |
UNHCR | United Nations High Commission for Refugees | USAID | United States Agency for International Development |
UU | University of Utrecht, The Netherlands | WB | World Bank |
WCS | Wildlife Conservation Society |
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Eria, S. Diffusion of GIS in Uganda: the role of change agents, opinion leaders, champions, social network links and re-invention. GeoJournal 84, 1567–1595 (2019). https://doi.org/10.1007/s10708-018-9938-4
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DOI: https://doi.org/10.1007/s10708-018-9938-4