Co-retractable Modules and Semi-Simplicity Property: . Samarra Journal of Pure and Applied Science, [S. l.], v. 5, n. 2, p. 151–159, 2023. DOI: 10.54153/sjpas.2023.v5i2.463. Disponível em: https://sjpas.com/index.php/sjpas/article/view/463. Acesso em: 25 apr. 2026.