“Knowledge of Personal Hygiene Among Food Handlers in Canteen at Faculty of Medicine, Universitas Padjadjaran, October to November 2012”. Althea Medical Journal 2, no. 2 (March 30, 2015): 245–249. Accessed July 15, 2026. https://journal.fk.unpad.ac.id/index.php/amj/article/view/559.