POURDAVOOD, R. G.; SONG, X. Engaging Pre-Service and In-Service Teachers in Online Mathematics Teaching and Learning: Problems and Possibilities. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 20, n. 11, p. 96–114, 2021. Disponível em: https://ijlter.net/index.php/ijlter/article/view/722. Acesso em: 19 apr. 2026.