SHALE, Doug; GOMES, Jean. Performance Indicators and University Distance Education Providers. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 13, n. 1, p. 1–20, 2007. Disponível em: https://ijede.ca/index.php/jde/article/view/139. Acesso em: 18 jul. 2024.