Kusuma, Purba Daru. “Hybrid Make-to-Stock and Make-to-Order (MTS-MTO)Scheduling Model in Multi-Product Production System”. International Journal of Integrated Engineering, vol. 14, no. 4, June 2022, pp. 188-00, https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/7974.