Joseph Ifeanyi Uche, Blessing Chika Ehiwario. Adsorption of Cadmium and Nickel from Aqueous Solution Using Chitosan and Chemically Modified Chitosan. IJSBAR. 2022;65(1):224-237. Accessed September 14, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/14701