ROTIMI AKINNUOYE. Leadership Management Styles: An Imperative for Employee Motivation Among GSM Service Providers in Port Harcourt. American Journal of Economics and Business Management, [S. l.], v. 4, n. 8, p. 23–33, 2021. DOI: 10.31150/ajebm.v4i8.576. Disponível em: https://www.globalresearchnetwork.us/index.php/ajebm/article/view/576. Acesso em: 12 jul. 2025.