Molcho , Michal, Yossi Harel and Lache Ο Dina . "Substance use and youth violence. A study among 6th to 10th grade Israeli school children" International Journal of Adolescent Medicine and Health, 16.3 (2011): 239-252. Retrieved 24 May. 2013, from doi:10.1515/IJAMH.2004.16.3.239

Molcho , M., Harel , Y. & Dina , L. (2011). Substance use and youth violence. A study among 6th to 10th grade Israeli school children. International Journal of Adolescent Medicine and Health, 16(3), pp. 191-289. Retrieved 24 May. 2013, from doi:10.1515/IJAMH.2004.16.3.239

Molcho , Michal, Yossi Harel and Lache Ο Dina. 2011. Substance use and youth violence. A study among 6th to 10th grade Israeli school children. International Journal of Adolescent Medicine and Health. 16(3): 191-289. Retrieved 24 May. 2013, from doi:10.1515/IJAMH.2004.16.3.239