Sinurat, Samfriati, Murni S D Simanullang, Mardiati Barus, and Gracia A Marbun. 2023. “The Effect of Health Education on Personal Hygiene on students’ Knowledge”. International Journal on ObGyn and Health Sciences 1 (2):66-72. https://doi.org/10.35335/obgyn.v1i2.70.