Tarigan, I.R., Tambunan, M.M. and Rimbawan, E.W. 2023. Collaborative Planning, Forecasting, and Replenishment (CPFR) to Reduce Bullwhip Effect: Case Study. Jurnal Sistem Teknik Industri. 25, 2 (Jul. 2023), 236-244. DOI:https://doi.org/10.32734/jsti.v25i2.10601.