Tarigan, Indah Rizkya, Mangara Mangapul Tambunan, and Ericko Wasita Rimbawan. 2023. “Collaborative Planning, Forecasting, and Replenishment (CPFR) to Reduce Bullwhip Effect: Case Study”. Jurnal Sistem Teknik Industri 25 (2):236-44. https://doi.org/10.32734/jsti.v25i2.10601.