ADJIETAMA, M. N. .; SUMIATI, S. Cost Optimization in Spare Parts Inventory with Lagrange Method. Academia Open, [S. l.], v. 10, n. 1, p. 10.21070/acopen.10.2025.11047, 2025. DOI: 10.21070/acopen.10.2025.11047. Disponível em: https://acopen.umsida.ac.id/index.php/acopen/article/view/11047. Acesso em: 1 sep. 2025.