HELAL, Layla H.; YASEEN, Sahira M. On Semiannahilator Supplement Submodules. Iraqi Journal of Science, [S. l.], p. 16–20, 2020. DOI: 10.24996/ijs.2020.SI.1.3. Disponível em: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/1895.. Acesso em: 8 dec. 2025.