Gaffney, H., Ttofi, M. M., & Farrington, D. P. (2019). Evaluating the effectiveness of school-bullying prevention programs: An updated meta-analytical review. Aggression and violent behavior, 45, 111-133. https://doi.org/10.1016/j.avb.2018.07.001
Chicago-Zitierstil (17. Ausg.)Gaffney, Hannah, Maria M. Ttofi, und David P. Farrington. "Evaluating the Effectiveness of School-bullying Prevention Programs: An Updated Meta-analytical Review." Aggression and Violent Behavior 45 (2019): 111-133. https://doi.org/10.1016/j.avb.2018.07.001.
MLA-Zitierstil (9. Ausg.)Gaffney, Hannah, et al. "Evaluating the Effectiveness of School-bullying Prevention Programs: An Updated Meta-analytical Review." Aggression and Violent Behavior, vol. 45, 2019, pp. 111-133, https://doi.org/10.1016/j.avb.2018.07.001.