El-Batouti, Mervette, and Abdel-Moneim M. Ahmed. “Reduction of Toxic Cr6+ to Cr3+ in Presence of Non-Toxic Organic Substances”. Asian Journal of Chemistry 28, no. 3 (December 5, 2015): 479–483. Accessed July 4, 2024. https://asianpubs.org/index.php/ajchem/article/view/28_3_3.