Sodsoon S, Kornvirat S, Sodsoon N. Applications of a saving method with max-min ant system to a vehicle routing problem with time windows and speed limits. Eng Appl Sci Res [internet]. 2014 Sep. 22 [cited 2026 Sep. 23];41(2):243-52. available from: https://ph01.tci-thaijo.org/index.php/easr/article/view/21796