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Eromosele, I.C., Otitolaye, O.O. Binding of iron, zinc, and lead ions from aqueous solution by shea butter (Butyrospermun Parkii) seed husks. Bull. Environ. Contam. Toxicol. 52, 530–537 (1994). https://doi.org/10.1007/BF00194140
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DOI: https://doi.org/10.1007/BF00194140