ZHANG, Xinjian; XU, Yong. A criterion of p-nilpotency of finite groups with some weakly s-semipermutable subgroups. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 42, p. 223–229, 2019. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7244. Acesso em: 27 oct. 2026.