Saothong, R., and J. Putjorn. “Leadership and Community Engagement Affecting Participation of Community Based Tourism (CBT) Management: A Case Study of U-Thong Ancient Area, Suphanburi Province”. Rajamangala University of Technology Tawan-ok Social Science Journal, vol. 10, no. 2, Dec. 2021, pp. 52-62, https://so05.tci-thaijo.org/index.php/SocialJournal2rmutto/article/view/256474.