1. On finite groups with exact 4p elements of maximal order are soluble;X. L. Du;Chinese Annals Mathematical Series A,2004
2. A Theorem of Finite Groups with 18p Elements Having Maximal Order
3. Finite groups based on the numbers of elements of maximal order;C. Yang;Chinese Annals Mathematical Series A.,1993
4. Finite groups with 2p2 elements of maximal order are soluble;Y. Y. Jiang;Chinese Annals Mathematical Series A,2000