Dewiyanti D, Suaib M. THE EFFECT OF EDUCATION POSTER ON NEW HABITS IN THE AGE OF COVID 19 ON KNOWLEDGE LEVEL OF THE ELDERLY AS A HIGH RISK GROUP (PRE EXPERIMENT STUDY). join [Internet]. 2021Dec.9 [cited 2025Apr.28];6(2):103-6. Available from: https://tes-ojs.uin-alauddin.ac.id/index.php/join/article/view/25147