“Permeable Reactive Barrier of Coated Sand by Iron Oxide for Treatment of Groundwater Contaminated With Cadmium and Copper Ions”. Al-Khwarizmi Engineering Journal 16, no. 2 (June 1, 2020): 47–55. Accessed April 30, 2025. https://www.alkej.uobaghdad.edu.iq/index.php/alkej/article/view/688.