et. al K. The Conceptual Framework: Causal Relationship of Standard and Service Quality of Thai Traditional Massage Business that influences Satisfaction and Customers’ Loyalty in the Upper Northern Region of Thailand. IJAST [Internet]. 2020Jan.13 [cited 2024Apr.16];29(2):1781 -1785. Available from: http://sersc.org/journals/index.php/IJAST/article/view/3426