HUBUNGAN IDENTITAS SOSIAL DENGAN PERILAKU AGRESIF PADA GENG MOTOR : THE RELATIONSHIP OF SOCIAL IDENTITY WITH AGGRESSIVE BEHAVIORS AMONG MOTORCYCLE GANG . JPPP [Internet]. 2014 Mar. 31 [cited 2026 Feb. 4];8(2):73-8. Available from: https://idjpcr.usu.ac.id/jppp/article/view/2774