Purwanza SW, Wulandari I, Wicaksono KE, Enofani DA. PREMARRIAGE SEX EDUCATION IN AN EFFORT TO INCREASE KNOWLEDGE OF RISK SEXUAL BEHAVIOR IN ADOLESCENTS. JPMK [Internet]. 2022 May 29 [cited 2024 Aug. 6];4(1):31-6. Available from: https://e-journal.unair.ac.id/JPMK/article/view/33932