ZEYADA, N.; AL-MALLAH, O.; AL-ZMAMMY, A. Generalization of Retractable and Coretractable Modules. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 8, n. 1, p. 1456–1463, 2014. DOI: 10.24297/jam.v8i1.2546. Disponível em: https://rajpub.com/index.php/jam/article/view/2546. Acesso em: 22 nov. 2024.