Pattanachak, Sivadon. “Customer Expectation and Perception of the Service Quality of Hotels in RoiKaenSanSin Cluster”. Journal of Research and Development Institute Rajabhat Maha Sarakham University 7, no. 2 (December 15, 2020): 363–380. Accessed May 7, 2024. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/216691.