Notes on Approximately Pure Submodules. Baghdad Science Journal, Iraq, Baghdad, v. 10, n. 4, p. 1269–1272, 2013. DOI: 10.21123/bsj.2013.10.4.1269-1272. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2839.. Acesso em: 3 may. 2024.