“Removal of Cu2+, Pb2+ , And Ni 2+ Ions From Simulated Waste Water By Ion Exchange Method On Zeolite And Purolite C105 Resin ”. Journal of Engineering 19, no. 10 (October 1, 2013): 1327–1340. Accessed November 23, 2024. https://joe.uobaghdad.edu.iq/index.php/main/article/view/2294.