Wijaya H, Wahyudi ST, Firmansyah Y. Behavior of Following Health Protocols (Keeping Distance, Washing Hands and Wearing Masks) as a Form of State Defense in the Era of COVID-19. cerdika [Internet]. 2021Mar.21 [cited 2024Nov.21];1(3):221-8. Available from: https://cerdika.publikasiindonesia.id/index.php/cerdika/article/view/9