Ramadhani, F. and Purwati 2022. Effect Of Immersion Of Used Cooking Oil With Activated Charcoal Bagasse (Saccharum officinarum) On Free Fatty Acids. KESMAS UWIGAMA: Jurnal Kesehatan Masyarakat. 8, 2 (Dec. 2022), 225–229. DOI:https://doi.org/10.24903/kujkm.v8i2.1421.