Kumphan, Thipsuda, Thanyaret Sriyonyot, Arisa Boonwan, and Ubolwan Chantem. “Vehicle Routing by Using a Saving Algorithm: Community Drinking Water Factory”. Thai Industrial Engineering Network Journal 9, no. 2 (December 30, 2023): 50–57. Accessed May 15, 2024. https://ph02.tci-thaijo.org/index.php/ienj/article/view/249999.