Hasina, S. N., S. Sulistyorini, F. Nisa, and R. K. Afiyah. “Music Therapy for Anxiety Level and Quality of Life of Patients Infected by COVID-19”. Open Access Macedonian Journal of Medical Sciences, vol. 9, no. G, Oct. 2021, pp. 251-5, doi:10.3889/oamjms.2021.7471.