Tungadi, Adri Riawan, Saskia Dyah, Rio Aurachman, and Budi Santosa. 2019. “Proposal of Product-Replenishment Policy Determination on Multi-Source Problems to Minimize Over Stock in DC PT. XYZ Area Bandung Using Mixed-Integer Programming Method”. International Journal of Innovation in Enterprise System 3 (1):21-27. https://ijies.telkomuniversity.ac.id/index.php/IJIES/article/view/31.