Heskia Kereh, Nisa Rachmania Mubarik, Rendi Palar, Pugoh Santoso,Yopi. “OPTIMIZATION OF PROCESS PARAMETERS AND SCALE-UP OF XYLANASE PRODUCTION USING CORN COB RAW BIOMASS BY MARINE BACTERIA BACILLUS SUBTILIS LBF M8 IN STIRRED TANK BIOREACTOR”. Pakistan Journal of Biotechnology, vol. 15, no. 3, Aug. 2018, pp. 707-14, https://pjbt.org/index.php/pjbt/article/view/367.