Appraisal of Face-to-Face Interaction in Open and Distance Learning System in Nigeria. West African Journal of Open and Flexible Learning, [S. l.], v. 3, n. 2, p. 39–50, 2014. Disponível em: https://wajofel.org/index.php/wajofel/article/view/287. Acesso em: 27 mar. 2026.