Wibowo, Wahyu Andri. “Efficiency Of Procurement Of Main Raw Materials For Pizza Makers With Economic Order Quantity (EOQ) Approach”. International Journal of Social and Management Studies 3, no. 4 (July 27, 2022): 64–67. Accessed February 22, 2025. https://ijosmas.org/index.php/ijosmas/article/view/216.