6Williams J S. Prime Graph Components of Finite Groups[ J]. J. Alg. ,1981,69:487 -513.
7Moghaddamfar A R. Shi W J, Zhou W, Zokayi A R. On the noncommuting graph associated with a finite group [ J ]. Siberian Math. J. ,2005,46(2) :325 - 332.
8Kurzweii H, Stellmacher B. The theory of Finite Groups [ M ]. New York:Springer - Verlag ,2004.
9徐明曜.有限群导引(上册)[M].北京:科学出版社,1997.
10Gorenstein D. Finite Groups, Harper and Row[ M ]. New York, 1968.
