IBRAHIM ECHU. Impact of Corruption on Public Service Delivery in Nigeria: Implications for Political Leadership and Economic Development . Covenant University Journal of Politics and International Affairs, [S. l.], v. 13, n. 1, 2025. Disponível em: https://journals.covenantuniversity.edu.ng/index.php/cujpia/article/view/5139. Acesso em: 5 dec. 2025.