Pattharapinyophong, W. “The Opportunities and Challenges for Thailand in Becoming the Medical Tourism Hub of the ASEAN Region”. Journal of Management Sciences Suratthani Rajabhat University, vol. 6, no. 1, July 2019, pp. 1-16, https://so03.tci-thaijo.org/index.php/msj/article/view/204141.