Sungsri, Sumalee, and Pacharawalai Sungsri. “Lifelong Learning for people in every age group in Thai society”. Journal of Humanities and Social Sciences Thonburi University 16, no. 2 (May 2, 2022): 158–170. accessed October 4, 2026. https://so03.tci-thaijo.org/index.php/trujournal/article/view/255354.