Srirak, Chainarong. “The Confirmatory Factor Analysis on Factors Influencing Decision to Use Medical Tourism Services from CLMV Countries in Thai-Laos Border Area, Nongkhai and Udon Thani Provinces”. Journal of Business Administration The Association of Private Higher Education Institutions of Thailand 10, no. 1 (June 6, 2021): 142–156. accessed April 26, 2025. https://so02.tci-thaijo.org/index.php/apheitvu/article/view/243340.