สุขชม มนสิชา. “Relationship Between Service Marketing Mix and Service Usage Behavior of Thai Massage Consumers in Bangkok Metropolitan Hospitals”. Siam University Journal of Business Administration 14, no. 23 (March 21, 2022): 15–27. accessed June 27, 2025. https://so07.tci-thaijo.org/index.php/sujba/article/view/800.