Miftah Suranata, Faradilla, et al. “Effect of Progressive Muscle Relaxation on Blood Pressure and Sexual Quality of Life in Hypertensive Patients”. Science Midwifery, vol. 10, no. 4, Sept. 2022, pp. 2760-6, https://www.midwifery.iocspublisher.org/index.php/midwifery/article/view/709.