Healthy Community Movement (GERMAS) And Distance, Wearing Mask, And Washing Hands (3m) In the Elderly to Prevent the Spread of Covid 19. ABDIMAS [Internet]. 2022 Apr. 30 [cited 2026 Jan. 27];5(1):2172-6. Available from: https://journal.umtas.ac.id/ABDIMAS/article/view/1722