PHINLA, W. .; PHINLA, W. .; MAHAPOONYANONT, N. . An integrated social studies teaching model based on problem-based and community-based learning to foster 21st century competencies in small primary schools. International Journal of Innovative Research and Scientific Studies, [S. l.], v. 8, n. 3, p. 509–518, 2025. DOI: 10.53894/ijirss.v8i3.6555. Disponível em: https://www.ijirss.com/index.php/ijirss/article/view/6555. Acesso em: 4 jul. 2025.