Krueprayong, Anita, and Weera Weerasophon. “Guidelines for Developing Wellness Spa Facilities for Tourism in Chiang Mai”. Interdisciplinary Academic and Research Journal 5, no. 1 (January 7, 2025): 309–328. accessed September 23, 2026. https://so03.tci-thaijo.org/index.php/IARJ/article/view/279966.