ABUSHKIN, H. K.; KHARITONOVA, A. A.; KHVASTUNOV, N. N.; GORSHUNOV, M. V. Problem-based learning in secondary school: Status and prospects. Cypriot Journal of Educational Sciences, [S. l.], v. 13, n. 4, p. 444–450, 2018. DOI: 10.18844/cjes.v13i4.3896. Disponível em: https://un-pub.eu/ojs/index.php/cjes/article/view/3896. Acesso em: 24 nov. 2024.