N , Odii Juliet; O.E , Osuagwu; V.E. , Ejiofor. An Empirical Analysis of Factors Inhibiting the Expansion of Mobile Number Portability in Nigeria . African Journal of Education,Science and Technology (AJEST), [S. l.], v. 3, n. 1, p. Pg 110–115, 2022. Disponível em: http://ajest.org/index.php/ajest/article/view/219. Acesso em: 3 apr. 2026.