Arsyad Sumantika, Ganda Sirait, Elva Susanti, and Elsya P. L. Tarigan. “Determination of Economic Value Using the EOQ and ROP Approaches in the Raw Material Control System”. Formosa Journal of Applied Sciences 2, no. 6 (June 23, 2023): 1051–1064. Accessed August 10, 2026. https://journal.formosapublisher.org/index.php/fjas/article/view/4323.