Chantra, Suthaporn, and Wuttigrai Ngamsirijit. “The Study of Key Success Factors of Wellness Tourism Service Business Case of Spa Business”. Journal of Thai Hospitality and Tourism 15, no. 1 (March 1, 2020): 58–71. Accessed April 17, 2024. https://so04.tci-thaijo.org/index.php/tourismtaat/article/view/90310.