HUSSAIN, Wissam A.; MOHAMMD ALI, Haibt K. WN-2-Absorbing Submodules And WNS-2-Absorbing Submodules. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 31, n. 3, p. 118–125, 2018. DOI: 10.30526/31.3.2001. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/2001. Acesso em: 26 mar. 2025.