Putra Ananda, Brillian Vallen, and Tedjo Sukomono. 2026. “Optimization of Sand Material Inventory Control to Minimize Costs at PT XYZ.: Optimalisasi Pengendalian Persediaan Material Pasir Untuk Meminimalkan Cost Pada PT XYZ”. Procedia of Engineering and Life Science 10 (1):366-73. https://doi.org/10.21070/pels.v10i1.3092.