Maya Lutfiana Ningrum, et al. “A The Relationship Between Knowledge Level and Premarital Sexual Behavior Among Students of SMA PGRI 10 Glenmore: The Relationship Between Knowledge Level and Premarital Sexual Behavior Among Students of SMA PGRI 10 Glenmore”. PROFESSIONAL HEALTH JOURNAL, vol. 7, no. 2, June 2025, pp. 547-54, doi:10.54832/phj.v7i2.1163.