Alda, Tania, Diana Carolina Sitohang, and Dimas Akmarul Putera. 2026. “Improving Crude Palm Oil Quality in Storage Tanks through PDCA-Based Control of Free Fatty Acids and Moisture Content”. Jurnal Sistem Teknik Industri 28 (4):223-32. https://doi.org/10.32734/jsti.v28i4.25547.