Kaewphet, R., and S. Wanjang. “MANAGEMENT OF SMALL TOURIST AREA IN KHEMARAJ DISTRICT, UBON RATCHATHANI PROVINCE”. Journal of MCU Social Science Review, vol. 8, no. 1, Apr. 2020, pp. 275-87, https://so03.tci-thaijo.org/index.php/jssr/article/view/241725.