Hassim, N.A.A. and Hui, K.C. and Floresyona, D. and Kamal, N.A. and Sambudi, N.S. (2022) Effect of pH on Adsorption of Cu2+ by Using Composite of Polyvinyl Alcohol (PVA)/Kaolin. ASEAN Journal of Chemical Engineering, 22 (1). pp. 93-104. ISSN 16554418