Rahma Yunita, F., and I. Murdani. “Food and Beverage Sanitation Hygiene Monitoring and Food Quality Served by Traders in the Elementary School Environment, Alafan District, Simeulue Regency”. Jurnal EduHealth, vol. 14, no. 02, June 2023, pp. 1059-66, https://ejournal.seaninstitute.or.id/index.php/healt/article/view/2394.