GREEN, O.O.; YUSUF, S.M.; ABDULRAZAQ, M.B.; YAHAYA, B.; HARUNA, Z.; ORE-OFE, A.; OMOGOYE, S.O.; ADEGOKE, A.S.; SALAMI, S.O. Anomaly Detection in a Portal System Network: A Review of Techniques, Challenges, and Future Directions. European Scientific Journal, ESJ, [S. l.], v. 43, p. 638, 2025. Disponível em: https://last.eujournal.org/index.php/esj/article/view/19810. Acesso em: 13 feb. 2026.