7Olweus D.Bullying at school: whate we know and what we can do [M] .Oxford, Blackwell. 1993, 59-61.
8Jimerson S R, Furlong M J.The handbook of school violence and school safety [ M] .New York: Routledge, 2006 : 383-394.
9Michal Molcho, Wendy Craig, Pemille Due, William Pickett, Yossi Harel-Fisch, Mary Overpeck and the HBSC Bullying Writing Group. Cross-national time trends in bullying behaviour 1994 - 2006: findings from Europe and North America [J] . Int J Public Health, 2009 (54) : 230.
10Smith P K.The silent nightmare: bullying and victim- ization in school peer groups. [J] .The Psychologist, 1991 (4) : 243--248.
