Fitroni, M. R. A. and Pulansari, F. (2024) “Analysis of PVC-based Product Inventory Control with Economic Production Quantity and Lagrange Multiplier Methods at PT. XYZ”, IJIEM - Indonesian Journal of Industrial Engineering and Management. Jakarta, Indonesia, 5(1), pp. 148–157. doi: 10.22441/ijiem.v5i1.22308.