PROMISE E.I., E.; C. P., F.; D, K.; JOHN, A.; MENSAH S., A. E-TELECOMMUNICATION INFORMATION SYSTEM. International Journal of Research -GRANTHAALAYAH, [S. l.], v. 8, n. 8, p. 403–412, 2020. DOI: 10.29121/granthaalayah.v8.i8.2020.1181. Disponível em: https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG20_B08_3687. Acesso em: 29 apr. 2024.