Aisyah Siregar. “ANALYSIS OF INVENTORY PLANNING FOR BRICK RAW MATERIALS USING THE MATERIAL REQUITMENT PLANNING (MRP) METHOD”. JOEL: Journal of Educational and Language Research 1, no. 7 (February 23, 2022): 965–972. Accessed July 5, 2025. https://www.bajangjournal.com/index.php/JOEL/article/view/1530.