Sae-Jane, P., and T. Chairee. “Lessons Learned and Perceptions of 21st Century Skills Development among Thai Students in an Intercampus Student Camp”. Sripatum Review of Humanities and Social Sciences, vol. 26, no. 1, June 2026, pp. 66-79, https://so05.tci-thaijo.org/index.php/spurhs/article/view/289105.