POONPUTTA, A. .; NUANGCHALERM, P. . A Model Framework for Enhancing Twenty-First Century Competencies in Primary School Teachers within Northeastern Thailand’s Sub-Area. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 23, n. 1, p. 98–113, 2024. Disponível em: http://www.ijlter.net/index.php/ijlter/article/view/1835. Acesso em: 25 may. 2026.