Quality Assurance as Individual Responsibility: The Three-Tier Reality of Research Integrity in Nigerian Public Universities. Nigerian Journal of Operations Research, [S. l.], v. 3, n. 2, p. 131–144, 2026. DOI: 10.67868/erdfga45. Disponível em: https://nijor.org.ng/index.php/nijor/article/view/19. Acesso em: 31 aug. 2026.