Perangin-angin, S. br. (2018). PENGETAHUAN SISWA TENTANG SEKS PRANIKAH DI SMA NEGERI 1 BERASTAGI TAHUN 2017. Jurnal Ilmiah PANNMED (Pharmacist, Analyst, Nurse, Nutrition, Midwivery, Environment, Dentist), 12(1), 62–68. https://doi.org/10.36911/pannmed.v12i1.51