บุญสอน รณชัย. “Sustainable Cultural Tourism Management of the Community in The Khong River Basin, Nong Khai Province”. Pathumthani University Academic Journal 11, no. 1 (June 14, 2019): 232–243. accessed September 28, 2026. https://so05.tci-thaijo.org/index.php/ptujournal/article/view/187973.