Marbun, C. E., & Ernawati, D. (2024). Material Requirement Planning of Choco Roll Product with Least Total Cost (LTC) and Least Unit Cost (LUC) Method at PT. XYZ. IJIEM - Indonesian Journal of Industrial Engineering and Management, 5(1), 244–253. https://doi.org/10.22441/ijiem.v5i1.22320