Popi Febrianti, Dwi Kemala Putri. The Influence Of Chemical Oxygen Demand (COD) And pH Of Pome As Biogas Raw Material On The CH4 Produced. IJSME [Internet]. 2024 Dec. 30 [cited 2026 Jun. 9];1(4):45-5. Available from: https://international.arimsi.or.id/index.php/IJSME/article/view/100