AHMAD, Hemin A.; HUMMADI, Parween A. Strongly irreducible ring and its S spectrum. Iraqi Journal of Science, [S. l.], v. 65, n. 7, p. 3922–3932, 2024. DOI: 10.24996/ijs.2024.65.7.30. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/8935.. Acesso em: 5 dec. 2025.