Sutjaritkulthorn, S. ., and C. . Na Thalang. “THE PROMOTION OF HOTEL BUSINESS IN CHUMPHON PROVINCE”. Academic Journal of Thailand National Sports University, vol. 12, no. 1, Jan. 2020, pp. 12-22, https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/244266.