EOQ-Based Inventory Control of Brown Clay for NPK Fertilizer at PT. Pupuk Kujang. Enginuity: Journal of Engineering Science and Technology, [S. l.], v. 1, n. 1, p. 12–20, 2025. Disponível em: https://ejournal.ipubdigi.com/index.php/JEST/article/view/15. Acesso em: 2 sep. 2025.