Afiliany, A., Ahmad Suryawan, & Rize Budi Amalia. (2025). The Relationship Between Age and Level of Knowledge About Menstruation and Readiness for Menarche in Grade IV - VI Female Students at Kertajaya Elementary School . PROFESSIONAL HEALTH JOURNAL, 7(1), 261–269. https://doi.org/10.54832/phj.v7i1.1068