Sulaymon, Abbas H, and Hussein M Al-Timimy. “Removal of Chromium from Wastewater by Adsorption”. Iraqi Journal of Chemical and Petroleum Engineering 2, no. 4 (December 30, 2001): 1–6. Accessed January 8, 2026. https://www.ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/596.