Md. Sazol Ahmmed, Sourav Kumar Ghosh, Naurin Zoha, Tanzima Zoha Chowdhury, and Md. Sazol Ahmmed. “Supplier Selection Using Integer Linear Programming Model”. Global Journals of Research in Engineering 18, no. J4 (July 15, 2018): 27–30. Accessed May 4, 2024. https://engineeringresearch.org/index.php/GJRE/article/view/1796.