Setyowati L, Raharjo M, Sulistiyani. VARIOUS MATERIALS OF CARBON ACTIVATEFOR NATURAL COAGULANTS TO REDUCECHEMICAL OXYGEN DEMAND (COD) . ijhes [Internet]. 2020Jul.1 [cited 2026Oct.7];3(6):14-1. Available from: https://www.ijhes.com/index.php/ijhes/article/view/93