SUFYAN A. HAMID; NADA K. ABDULLAH. Complement Hopfian Module. Tikrit Journal of Pure Science, [S. l.], v. 25, n. 3, p. 121–123, 2020. DOI: 10.25130/tjps.v25i3.259. Disponível em: https://tjps.tu.edu.iq/index.php/tjps/article/view/259. Acesso em: 19 2024.