Evaluasi Produksi Minyak Mentah Gross Profit Worth(GPW), Margin,Proses Blending dan Kolaborasi Rantai Pasok. j.sist.teknik.industri. [Internet]. 2019 Aug. 16 [cited 2026 Feb. 5];21(2):82-9. Available from: https://idjpcr.usu.ac.id/jsti/article/view/1225