Hardiyarto, A., Soetrisnanto, D., Samsudin, A. M., Asri, P. D. A., & Abdillah, S. (2018). CO Digestion for Biogas Production from Tapioca Industrial Wastewater and Septage, 18(1), 24-29. Diambil dari https://journal.ugm.ac.id/v3/AJChE/article/view/8990