Prasetyawati, L. et al. 2024. THE INFLUENCE OF SEX BEFORE MARRIAGE EDUCATION ON STUDENTS’ KNOWLEDGE AND ATTITUDES AT SMK PGRI PEDAN KLATEN. Jurnal Ilmu Kesehatan Masyarakat Berkala (JIKeMB). 5, 2 (Aug. 2024). DOI:https://doi.org/10.32585/jikemb.v5i2.5403.