Laipaporn, J., & Praprom, C. (2021). The Expenditure on Wellness Tourism of Tourists Travelling in Betong District, Yala Province. Journal of Humanities and Social Sciences Prince of Songkla University, 16(2), 37–66. Retrieved from https://so03.tci-thaijo.org/index.php/eJHUSO/article/view/251174