2025. EFFECTIVENESS OF THE FILTRATION METHOD USING ACTIVATED CARBON FROM KEPOK BANANA PEELS AND ZEOLITE TO REDUCE KMnO4 LEVELS. Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics. 7, 1 (Jan. 2025), 46–53. DOI:https://doi.org/10.15408/fiziya.v7i1.40520.