Wu, Thomas, and Bayu Adzikri Ramadhan. 2026. “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 Jurnal Teknik 5 (1):299-306. https://doi.org/10.56211/blendsains.v5i1.1713.