Ng, W. Q., S. O. Lai, K. C. Chong, S. S. Lee, C. H. Koo, and W. C. Chong. 2018. “Reduction of Total Suspended Solids, Turbidity and Colour of Palm Oil Mill Effluent Using Hybrid Coagulation-Fltrafiltration Process”. Journal of Applied Membrane Science & Technology 23 (1). https://doi.org/10.11113/amst.v23n1.144.