Rustandi B. Logistics Technology Innovation and Operational Efficiency : Assesing Cost of Goods Sold (COGS) in Reduction in Medium-Sized Manufacturing Firms. M.Journal [Internet]. 2026 Mar. 30 [cited 2026 May 22];3(1):58-69. Available from: https://heijournal.id/index.php/simj/article/view/182