SHINAGEL, M. The Gates Unbarred: A History of University Extension at Harvard, 1910 - 2009. Education Review, [S. l.], 2015. DOI: 10.14507/er.v0.1326. Disponível em: https://edrev.asu.edu/index.php/ER/article/view/1326. Acesso em: 6 may. 2024.