IBRAHIM, Omar Hameed; AL-MOTHAFAR, Nuhad Salim. Pure Essential Submodules. Iraqi Journal of Science, [S. l.], v. 66, n. 5, p. 1989–1995, 2025. DOI: 10.24996/ijs.2025.66.5.17. Disponível em: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/12152.. Acesso em: 6 dec. 2025.