MIAO, L.; PU, Zh. Q -permutable subgroups of finite groups. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 63, n. 11, p. 1534–1543, 2011. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2823. Acesso em: 5 dec. 2025.