kasetiam, vikanda, Jaturong Sriwongwanna, and Wanna Piyaratmanon. 2020. “A pilot project to environmental-friendly lodging and accommodation in Ubon Ratchathani Province”. Journal for Developing the Social and Community 7 (2). Bangkok, Thailand:307-24. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/226926.