Sodsoon, Suphan, Savalee Uttra, and Sombat Sindhuchao. “An Ant Colony System (ACS) With a Hybrid Local Search to Solve Vehicle Routing Problems”. Engineering and Applied Science Research 43, no. 1 (January 28, 2016): 1–8. Accessed May 21, 2024. https://ph01.tci-thaijo.org/index.php/easr/article/view/33536.