ISMAIL, Y. Quality Assurance in Open and Distance Learning: The Approach of National Universities Commission of Nigeria. JOURNAL OF ISSUES AND PRACTICE IN EDUCATION, [S. l.], v. 4, n. 1, 2017. DOI: 10.61538/jipe.v4i1.239. Disponível em: https://journals.out.ac.tz/index.php/jipe/article/view/239. Acesso em: 12 oct. 2025.