Arree, Worapon, Phanuphong Klinaubon, Sippakorn Kornphan, Thanapat Rattananonsatien, and Chirattikan Khotchasit. “Solving Vehicle Routing Problem: A Case Study of ABC Drinking Water Company Limited”. Economics and Business Administration Journal Thaksin University 14, no. 3 (June 27, 2022): 1–24. Accessed April 26, 2024. https://so01.tci-thaijo.org/index.php/ecbatsu/article/view/250661.