UMORU-OKI, E. Governance Challenges and the Performance of Nigeria Health Sector. Nigerian Academy of Management Journal, [S. l.], v. 12, n. 2, p. 10–18, 2017. Disponível em: https://namj.tamn-ng.org/index.php/home/article/view/97. Acesso em: 29 apr. 2026.