Shrestha, Bindra, P. L. Homagai, M. R. Pokhrel, and K. N. Ghimire. “Removal of Copper (II) and Zinc (II) Ions from Aqueous Solution by Biosorption onto Aminated Tea Waste”. Journal of Nepal Chemical Society 28 (May 7, 2013): 48–53. Accessed May 19, 2024. https://www.nepjol.info/index.php/JNCS/article/view/8058.