DR. SAMUEL OKAFOR. A Secure Role-Based Authentication Framework Using IBM Tivoli Access Manager for Enterprise Cloud Environments. International Research Journal of Computer and Electronics Engineering, [S. l.], v. 13, n. 06, p. 1–9, 2026. DOI: 10.64917/ircee.v13.i06.a01. Disponível em: https://urgcee.org/index.php/ircee/article/view/187. Acesso em: 21 oct. 2026.