Petrosino, A., H. Turner, T. Hanson, T. Fronius, P. Campie, and C. Cooke. “The Impact of the Safe and Successful Youth Initiative (SSYI) on City-Level Youth Crime Victimization Rates”. Journal of MultiDisciplinary Evaluation, vol. 13, no. 29, Sept. 2017, pp. 8-15, https://journals.sfu.ca/jmde/index.php/jmde_1/article/view/464.