Covering Theorem for Finite Nonabelian Simple Groups. مجلة بغداد للعلوم, Iraq, Baghdad, v. 4, n. 1, p. 165–168, 2021. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/781.. Acesso em: 18 2024.