Effectiveness of Coconut Fiber Filter in Grease Trap with Varying Retention Times on the Reduction of Oil and Grease in Canteen Wastewater of a Textile Industry. CHEMSUKA. 2025;1(1):45-58. Accessed January 31, 2026. https://ejournal.uin-suka.ac.id/saintek/chemsuka/article/view/5836