Yolanda, Y., Said, I. ., Suryati, T. . and Simanungkalit, R. (2022) “ The Effects of Progressive Muscle Relaxation on the Level of Anxiety in Nurses Caring for Patients with Covid-19”, Indonesian Contemporary Nursing Journal (ICON Journal), 7(1), pp. 16-24. doi: 10.20956/icon.v7i1.18789.