HADI, Inaam, M.A.; MARHUN, Hassan K. Small Monoform Modules. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 27, n. 2, p. 229–240, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/347. Acesso em: 29 mar. 2025.