IRREEM ATHEED, M.; MOHAMMAD IBRAHIM, L. The Multilevel Encryption Model: A review. AL-Rafidain Journal of Computer Sciences and Mathematics, [S. l.], v. 18, n. 1, p. 40–49, 2024. DOI: 10.33899/csmj.2024.143560.1084. Disponível em: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/49549. Acesso em: 18 dec. 2025.