Plaisent, M., C. Thanitnan, P. Bernard, chaturawat Thanitnan, and R. Ponwiritthon. “Assessing Airport Taxi Customer Satisfaction’s Factors: A First Step”. RMUTL Journal of Business Administration and Liberal Arts, vol. 6, no. 1, June 2018, pp. 162-74, https://so05.tci-thaijo.org/index.php/balajhss/article/view/126490.