Mutamim, N.S.A. and Noor, Z.Z. 2017. Assessment of Membrane Bioreactor in Treating Spent Sulfidic Caustic Wastewater: Effects of Organic Biomass Concentration and Solid Retention Time. Chemical Engineering Research Bulletin. 19, (Sep. 2017), 102–110. DOI:https://doi.org/10.3329/cerb.v19i0.33803.