Ratanawaraphorn, Bhakhakanok, Chompu Nuangjamnong, and Stanislaw Paul Maj. “THE INVESTIGATION OF HOTELS IN THE NORTHERN PARTS OF THAILAND FOR FOREIGN TOURISTS TO THE QUALITY OF SERVICES”. AU-GSB e-JOURNAL 10, no. 2 (June 5, 2018): 75. Accessed May 8, 2024. http://www.assumptionjournal.au.edu/index.php/AU-GSB/article/view/3281.