M.K.N. Jensani, A.N. Sadikin, N. Ngadi, M.F. Azman, Z. Ab Muis, U.A. Asli, Anaerobic Co-Digestion of Food Waste with Crude Glycerol for Biogas Production, Chemical Engineering Transactions. 83 (2021) 577-582. doi:10.3303/CET2183097.