Sroyprtch, S., S. Ongkhluab, A. Rungchaiyan, and T. Tanaichote. “The preferred type of tourist accommodation for tourists in the southern part of the north eastern region, Thailand (Thai)”. Asia-Pacific Journal of Science and Technology, vol. 12, no. 4, Apr. 2017, pp. 529-36, https://so01.tci-thaijo.org/index.php/APST/article/view/83925.