Chaleomklin, Pongsada. 2024. “The Causal Relationship of Satisfaction Affecting Customer Loyalty of Spa and Massage in Kanchanaburi Province”. Journal of Multidisciplinary in Humanities and Social Sciences 7 (2):1059-80. https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/270554.