TAVARES, M. Contributions to the history of teacher unionism in Portugal: From study groups to the assertion and crisis of the teacher union movement. Education Policy Analysis Archives, [S. l.], v. 22, p. 37, 2014. DOI: 10.14507/epaa.v22n37.2014. Disponível em: https://epaa.asu.edu/index.php/epaa/article/view/1464. Acesso em: 7 aug. 2022.