Sinurat, S., M. S. D. Simanullang, M. Barus, and G. A. Marbun. “The Effect of Health Education on Personal Hygiene on students’ Knowledge”. International Journal on ObGyn and Health Sciences, vol. 1, no. 2, Apr. 2023, pp. 66-72, doi:10.35335/obgyn.v1i2.70.