จันทร์ตรี ว., and ศรีโภคางกุล ศ. “Cultural Tourism in Line With Local Sustainable Development: A Case Study of Khemarat District, Ubon Ratchathani Province”. RMUTI JOURNAL Humanities and Social Sciences, vol. 5, no. 1, June 2017, pp. 116-32, https://so05.tci-thaijo.org/index.php/RMUTI_SS/article/view/189664.