Study of Biogas Production from Cassava Industrial Waste by Anaerobic Process Budiyono, Arindra D. Primaloka, Listi Ardhannari, Hashfi H.A. Matin and Siswo Sumardiono MATEC Web Conf., 156 (2018) 03052 Published online: 14 March 2018 DOI: 10.1051/matecconf/201815603052