Haesti Sembiring and Riyanto Suprawihadi 2023. Cabbage Waste as Raw Material for Biogas Production with Water and Chicken Manure Activator . Jurnal Multidisiplin Madani. 3, 6 (Jun. 2023), 1257–1262. DOI:https://doi.org/10.55927/mudima.v3i6.4552.