IKPE, Peter Adoga; ADAMU, Idama. An Information System for Management of National Open University of Nigeria (NOUN) Study Centres. West African Journal of Open and Flexible Learning, [S. l.], v. 2, n. 2, p. 133–144, 2013. Disponível em: https://wajofel.org/index.php/wajofel/article/view/318. Acesso em: 4 jun. 2026.