Boonkong, Ratchataporn, and Songyuth Tonwan. “Development of Tourism Management Model With Three Dharma for Wellness Tourism Follow a Sufficiency Thai Lifestyle for Elderly Tourists in SANUK Province Group”. Journal of Humanities and Social Sciences Thonburi University 17, no. 2 (May 3, 2023): 53–67. Accessed May 16, 2024. https://so03.tci-thaijo.org/index.php/trujournal/article/view/265814.