Kadhim, Hakim H., and Khulood A. Saleh. “Removing Cobalt Ions from Industrial Wastewater Using Chitosan”. Iraqi Journal of Science 63, no. 8 (August 31, 2022): 3251–3263. Accessed January 3, 2026. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/4733.