เหลาหา ชาญชัย, and สุขโต ศีขรินทร์. “Economics Model Selection for Truck Maintenance Costs Reduction; Agricultural Truck Case Study”. Engineering and Technology Horizons 33, no. 3 (June 22, 2020): 47–54. Accessed May 19, 2024. https://ph01.tci-thaijo.org/index.php/lej/article/view/241373.