2025. THE EFFECT OF MASS AND PH ON DECREASING CHEMIXAL OXYGENT DEMAND (COD) ON PALM OIL MILL EFFLUENT (POME) BY CACAO SHELL ADSORBENT. Stannum : Jurnal Sains dan Terapan Kimia. 7, 2 (Nov. 2025), 54–59. DOI:https://doi.org/10.33019/6c0wd245.