RAKPONG, P.; THUMMARPON , W.; AKSARAWADIWAT , R. Development and Qualifying a Participatory Problem-Based Learning Model on Good Citizens in Democracy for Grade 9 Students in Schools of Ranong. Journal of Modern Learning Development, [S. l.], v. 9, n. 1, p. 19–36, 2024. Disponível em: https://so06.tci-thaijo.org/index.php/jomld/article/view/264282. Acesso em: 16 sep. 2026.