The Editor-in-Chief has retracted this article (Akib et al. 2014) because validity of the content of this article cannot be verified. This article showed evidence of substantial text overlap (most notably with the articles cited (Akib et al. 2015; Rahman et al. 2014)), authorship and peer review manipulation. Author S. Shamshirband disagrees; S. Akib and S. Rahman have not responded to correspondence about this retraction.