NGUYEN, T. T. H.; JONGKONKLANG, D. A Study of 21st Century Learning Skills for High School Students in Cao Bang Province, Vietnam. KKU Research Journal (Graduate Studies) Humanities and Social Sciences, [S. l.], v. 6, n. 2, p. 14–24, 2018. Disponível em: https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/130976. Acesso em: 1 may. 2024.