Lertwannawit, Aurathai, and Nak Gulid. “International Tourists Service Quality Perception And Behavioral Loyalty Toward Medical Tourism In Bangkok Metropolitan Area”. Journal of Applied Business Research (JABR) 27, no. 6 (October 27, 2011): 1-12. Accessed September 28, 2020. https://clutejournals.com/index.php/JABR/article/view/6460.