Vedhavalli, S., and K. Srinivasan. “Removal of Copper(II) from Aqueous Solution by Cottonseed Carbon”. Asian Journal of Chemistry 17, no. 4 (June 7, 2016): 2644–2652. Accessed November 29, 2024. https://asianpubs.org/index.php/ajchem/article/view/13925.