Sofiana, Liena, Universitas Ahmad Dahlan Yogyakarta, Indonesia

• Vol 15, No 1 (2019) - Articles
  Predisposing, Enabling and Reinforcing Factors of Premarital Sex Behavior in School Adolescents
  Abstract  PDF
• Vol 16, No 1 (2020) - Articles
  Violence Determinant on Teenagers in Yogyakarta
  Abstract  PDF