จันทรุไทย ปิติ. “A Study of Passenger Mode Choice Behavior of Urban Public Transport System: A Case Study of Nakhon Si Thammarat Municipality”. Engineering and Technology Horizons 32, no. 2 (June 17, 2020): 61–66. Accessed May 19, 2024. https://ph01.tci-thaijo.org/index.php/lej/article/view/241236.