Harahap, A.Z.M.K., Nursal, A.T. , Sahlan, K. and Sobry, S.C. 2023. The Characteristics of Demand Rates in Inventory Routing Problem. Advances in Social Sciences Research Journal. 10, 7 (Jul. 2023), 76–84. DOI:https://doi.org/10.14738/assrj.107.15043.