MCGREAL, Rory. A Survey of OER Implementations in 13 Higher Education Institutions. The International Review of Research in Open and Distributed Learning, [S. l.], v. 20, n. 5, p. 141–145, 2019. DOI: 10.19173/irrodl.v20i5.4577. Disponível em: https://www.irrodl.org/index.php/irrodl/article/view/4577. Acesso em: 13 may. 2024.