Batu Bara, K., Deliati, D. and Magdalena, M. 2025. Reducing Premarital Sexual Behavior Through Information Services with the Pancawaskita Approach for Class X PL Students of SMK Negeri 4 Medan. Jurnal Riset Ilmu Pendidikan. 5, 2 (May 2025), 378–382. DOI:https://doi.org/10.56495/jrip.v5i2.1049.