Manyele, S. V., et al. “OXYGEN TRANSFER IN A THREE-PHASE FLUIDISED BED BIOREACTOR WITH NOVEL BIOMASS SUPPORT WHEN USED IN INDUSTRIAL WASTEWATER TREATMENT”. Tanzania Journal of Engineering and Technology, vol. 22, no. 2, Aug. 2018, http://196.44.161.124/index.php/tjet/article/view/2095.