Irawan, E., Iklima, N., Maidartati, M., Ningrum, T. P. and Safira, Y. (2024) “The Effect of Progressive Muscle Relaxation Therapy on Sleep Quality in Elderly Hypertensive Patients”, Journal Medical Informatics Technology, 2(4), pp. 103–107. doi: 10.37034/medinftech.v2i4.66.