Azmy, L.U., Subrata, I.M. and Suariyani, N.L.P. 2022. Efficacy of sport and slow stroke back massage as a non-pharmacological therapy to lower blood pressure in elderly with chronic hypertension. Public Health and Preventive Medicine Archive. 9, 1 (Aug. 2022). DOI:https://doi.org/10.53638/phpma.2021.v9.i1.p06.