“Comparative Biosorption Of Pb(II), Cr(III) AND Cd(II) Ions In Single Component System By Live And Dead Anaerobic Biomass, Bath Study”. Journal of Engineering 18, no. 06 (June 1, 2012): 710–716. Accessed May 20, 2024. https://joe.uobaghdad.edu.iq/index.php/main/article/view/2217.