VERMETTE, S. . Teachers’ Professional Knowledge: The case of Variability. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 15, n. 6, p. 48–60, 2016. Disponível em: http://www.ijlter.net/index.php/ijlter/article/view/921. Acesso em: 30 jul. 2026.