Gaol, Rusmauli Lumban, and Juliana Naibaho. “An Overview of the Knowledge of Level 1 Nurse Students about the 5M Health Protocol in Covid-19 Prevention at STIKes Santa Elisabeth Medan 2022”. JURNAL KEPERAWATAN DAN FISIOTERAPI (JKF) 5, no. 1 (October 31, 2022): 21–26. Accessed April 20, 2024. https://ejournal.medistra.ac.id/index.php/JKF/article/view/1144.