HAMZEH, M. . .; TABIEH, A. A.; MANSOUR , O. N. . Twenty-first-century skills acquired by mathematics teachers: School principals’ perspectives. Cypriot Journal of Educational Sciences, [S. l.], v. 17, n. 1, p. 41–55, 2022. DOI: 10.18844/cjes.v17i1.6680. Disponível em: https://un-pub.eu/ojs/index.php/cjes/article/view/6680. Acesso em: 18 may. 2024.