“THE PRODUCTION OF BIOHYDROGEN AND BIOMETHANE FROM CASSAVA WASTEWATER UNDER MESOPHILIC ANAEROBIC FERMENTATION BY USING UPFLOW ANAEROBIC SLUDGE BLANKET REACTORS (UASB)” (2016) Jurnal Teknologi (Sciences & Engineering), 78(5-6). doi:10.11113/jt.v78.8629.