Perangin-angin, Susanti br. “PENGETAHUAN SISWA TENTANG SEKS PRANIKAH DI SMA NEGERI 1 BERASTAGI TAHUN 2017”. Jurnal Ilmiah PANNMED (Pharmacist, Analyst, Nurse, Nutrition, Midwivery, Environment, Dentist) 12, no. 1 (November 5, 2018): 62–68. Accessed August 27, 2025. https://ojs.poltekkes-medan.ac.id/pannmed/article/view/51.