“Adsorption of Cd(II) and Pb(II) Ions from Aqueous Solution by Activated Carbon”, alkej, vol. 5, no. 4, pp. 13–17, Dec. 2009, Accessed: Apr. 30, 2025. [Online]. Available: https://www.alkej.uobaghdad.edu.iq/index.php/alkej/article/view/578