Rina Amelia (2019) “- Effectiveness of Education on Increasing Knowledge, Attitude, and Practice of Hygiene Behavior and Health Attitudes of Preschool-Aged Teachers in North Sumatera. Indonesia: Hygiene Behavior and Health Attitudes of Preschool-Aged Teachers”, Journal of Saintech Transfer, 2(2), pp. 180-186. doi: 10.32734/jst.v2i2.3691.