Yolanda Y, Said I, Suryati T, Simanungkalit R. The Effects of Progressive Muscle Relaxation on the Level of Anxiety in Nurses Caring for Patients with Covid-19. ICON Journal [Internet]. 2022Aug.30 [cited 2025Apr.6];7(1):16-24. Available from: http://334012.libg.asia/index.php/icon/article/view/18789