Single Item Supplier Selection and Order Allocation Problem with a Quantity Discount and Transportation Costs. Momona Ethiopian Journal of Science (MEJS) , [S. l.], v. 12, n. 1, p. 20–38, 2024. Disponível em: https://journal.mu.edu.et/index.php/mejs/article/view/282.. Acesso em: 7 sep. 2024.