“EFFICIENCY ANALYSIS OF PALM KERNEL OIL AS A RAW MATERIAL IN IMPROVING SUPPLY CHAIN PERFORMANCE: CASE STUDY AT PT XYZ” (2023) Jurnal AGRISEP: Kajian Masalah Sosial Ekonomi Pertanian dan Agribisnis, 22(02), pp. 427–446. doi: 10.31186/jagrisep.22.02.427-446.