Zhao, Tao, Gangfu Lu, and Chengjun Lv. “ON WEAKLY SS-QUASINORMAL SUBGROUPS OF FINITE GROUPS”. Italian Journal of Pure and Applied Mathematics 35 (December 31, 2015): 61–74. Accessed August 16, 2026. https://journals.uniurb.it/index.php/ijpam/article/view/6457.