M., A. O.; F., O. C.; ABISOLA, A. I. Pull Factors as Determinants of Telephone Number Portability among Mobile Phone Users in Public Universities in Nigeria. The International Journal of Science & Technoledge, [S. l.], v. 5, n. 9, 2017. Disponível em: http://internationaljournalcorner.com/index.php/theijst/article/view/123654. Acesso em: 8 jul. 2024.