Safaruddin et al. 2025. The Effect of Relaxation on Blood Pressure Reduction in Elderly Patients with Hypertension: A Systematic Review. Jurnal kesehatan komunitas (Journal of community health). 11, 2 (Jul. 2025), 300–307. DOI:https://doi.org/10.25311/keskom.Vol11.Iss2.2070.