Wu T, Ramadhan BA. Analisis Efisiensi Biaya Bahan Baku Semen OPC Menggunakan Metode Material Requirement Planning Lot for Lot (MRP-LFL) dan Just in Time (JIT) pada PT ABC. Blend Sains J. Teknik [Internet]. 2026 Jul. 30 [cited 2026 Aug. 5];5(1):299-306. Available from: https://jurnal.ilmubersama.com/index.php/blendsains/article/view/1713