Sonsai, Achiraya, and Viroat Srisurapanon. “Solving Traffic Congestion around School by using School Buses”. Science and Engineering Connect 45, no. 2 (June 30, 2022): 247–260. accessed June 30, 2025. https://ph04.tci-thaijo.org/index.php/SEC/article/view/10284.