Sumihudiningsih, Y., E. Soesilowati, and H. Tri Atmaja. “The Social Behaviors of Marginal Group Adolescents in Semarang”. JESS (Journal of Educational Social Studies), Vol. 8, no. 2, Dec. 2019, pp. 209-16, https://journal.unnes.ac.id/sju/jess/article/view/39701.