Purely Small Submodules and Purely Hollow Modules. Iraqi Journal of Science, [S. l.], v. 63, n. 12, p. 5487–5495, 2022. DOI: 10.24996/ijs.2022.63.12.34. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/6622.. Acesso em: 21 dec. 2024.