Alda, T., Sitohang, D. C., & Putera, D. A. (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), 223–232. https://doi.org/10.32734/jsti.v28i4.25547