Ananda, B. V. P., and T. Sukmono. “Optimization of Sand Material Inventory Control to Minimize Costs at PT XYZ.: Optimalisasi Pengendalian Persediaan Material Pasir Untuk Meminimalkan Cost Pada PT XYZ”. Indonesian Journal of Innovation Studies, vol. 27, no. 2, Oct. 2026, p. 10.21070/ijins.v27i2.2432, doi:10.21070/ijins.v27i2.2432.