Wangchan, R., and T. Worapishet. “Factors Influencing Customer Loyalty in Hotel Business: Case Study of Five-Star Hotels in Bangkok, Thailand”. Asian Administration and Management Review, vol. 2, no. 1, Dec. 2019, pp. 86-96, https://so01.tci-thaijo.org/index.php/AAMR/article/view/229766.