Azzahra, E. A. F., V. Novianti, and M. Al-Irsyad. “Relationship Between Personal Hygiene and Environmental Sanitation to the Presence of Escherichia Coli Bacteria in Food ”. BKM Public Health and Community Medicine, June 2024, https://dev.journal.ugm.ac.id/v3/BKM/article/view/13428.