Siti Rosyafah, Ummi Sa'adah, Dhuihitta Mahardhika Lakshita. Production Efficiency of Cost of Goods Sold at PT. Malang Raya Express through the Order Costing Method. JAMBAK [Internet]. 2023 Dec. 20 [cited 2026 Aug. 24];2(2):201-12. Available from: https://journal.formosapublisher.org/index.php/jambak/article/view/7410