Wongwiriya, P., F. Nakamura, S. Tanaka, S. Miura, and R. Ariyoshi. “User Perception of Paratransit in Thailand: Case Study of Traveling to Work in Khon Kaen City”. Asia-Pacific Journal of Science and Technology, vol. 22, no. 2, Apr. 2017, pp. APST-22, doi:10.14456/apst.2017.27.