Thongsawang, Prakart Pawa, and Santidhorn Pooripakdee. “Factor Analysis and Classification of Travel Behavior of Physically Disabled”. Journal Of Ratchasuda College for Research and Development of Persons With Disabilities 15, no. 1 (June 28, 2019). Accessed September 20, 2020. https://so03.tci-thaijo.org/index.php/RSjournal/article/view/205680.