The relationships between environmental factors and violent behaviors in adolescent students of Isfahan, Iran oleh Razieh Omidi, Kamal Heidari, Hossein Davari, Morteza Espanani, Mojtaba Poursalehi, Shokooh Eghtedari Naeini, Zeinabsadat Rastkerdar, Amir Azizi, Mohammadreza Zakizadeh