Annop, S., P. Sridang, P. Chevakidagarn, and K. Nopthavorn. 2017. “Comparison of Performance of an Intermittent Aeration Membrane Bioreactor and a Conventional Activated–sludge System in the Treatment of Palm Oil Mill Effluent”. Journal of Applied Membrane Science & Technology 7 (1). https://doi.org/10.11113/amst.v7i1.53.