7[3]Salmivalli C., Lagerspetz K., Osterman K., Kaukiainen A. Bullying as a group process: participant roles and their relation to social status within the group[J]. Aggressive Behavior, 1996, 22: 1-15.
8[4]Perry D. G., Kusel S. J., Perry L. C. Victims of peer aggression[J]. Developmental Psychology, 1988, 6: 807-814.
9[5]Boulton M. J., Smith P. K. Bully/victim problems in middle-school children: Stability, self-perceived competence, peer perceptions and peer acceptance[J]. British Journal of Developmental Psychology, 1994, 12: 315-319.
10[6]Dodge K. A., Bates J. E., Pettit G. S. Mechanisms in the cycle of violence[J]. Science, 1990, 250: 1678-1683.
