Liu, Zhi-rong, and Shao-qi Zhou. “Adsorptive Removal of Cadmium from Aqueous Solution onto Na-Bentonite”. Asian Journal of Chemistry 22, no. 8 (June 23, 2010): 6503–6508. Accessed July 4, 2024. https://asianpubs.org/index.php/ajchem/article/view/11842.