Raghad Hamid Hilal. (2020). (Polyacrylamide-Kaolin) Composite Used For Extraction Precious Metals (Au+1, Ag+1) From Electronic Waste Solution by Using Hydrometallurgical Method. Wasit Journal of Engineering Sciences, 7(3), 41-49. https://doi.org/10.31185/ejuow.Vol7.Iss3.136