Marbun, C.E. and 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 (Jun. 2024), 244–253. DOI:https://doi.org/10.22441/ijiem.v5i1.22320.