FRIESEN, Norm. Open Educational Resources: New Possibilities for Change and Sustainability. The International Review of Research in Open and Distributed Learning, [S. l.], v. 10, n. 5, 2009. DOI: 10.19173/irrodl.v10i5.664. Disponível em: https://www.irrodl.org/index.php/irrodl/article/view/664. Acesso em: 16 apr. 2024.