Qadafi, Muhammad, et al. “Pengurangan Bullwhip Effect Pada Rantai Pasok Air Minum Dalam Kemasan Menggunakan Metode Collaborative Planning, Forecasting, and Replenishment (CPFR): Studi Kasus”. Operations Excellence: Journal of Applied Industrial Engineering, vol. 14, no. 3, Feb. 2023, pp. 311-22, doi:10.22441/oe.2022.v14.i3.065.