CHIANGSAN, C.; MEEPROM, K. The Management of Learner Development Activity Based on the Concept of the 21St Century Skills Under Chiang Rai Primary Educational Service Area Office 1. Journal of Modern Learning Development, [S. l.], v. 9, n. 10, p. 475–492, 2024. Disponível em: https://so06.tci-thaijo.org/index.php/jomld/article/view/272974. Acesso em: 1 oct. 2026.