DISO, Lukman Ibraheem. Mobile Service Providers and M-learning in Nigeria: Mobility in a Contracting Space. International Journal of Interactive Mobile Technologies (iJIM), [S. l.], v. 2, n. 1, 2007. DOI: 10.3991/ijim.v2i1.176. Disponível em: https://online-journals.org/index.php/i-jim/article/view/176. Acesso em: 1 may. 2024.