ALI YAKUBU, M.; OTHNIEL SUNDAY, G. .; INUWA USMAN, F. Service Charges and Telecommunication Companies in Gombe State, Nigeria: The role of Nigerian Communication Commission. Gusau International Journal of Management and Social Sciences, [S. l.], v. 4, n. 1, p. 28, 2021. Disponível em: https://gijmss.com.ng/index.php/gijmss/article/view/39. Acesso em: 22 sep. 2026.