Effectiveness of Giving Loss of Rosella Tea on Decreasing Blood Pressure in Elderly Patients of Hypertension in Working Areas Puskesmas Sengkol Village Sengkol 2 District Pujut Regency of Central Lombok. J. Kesehat. Qamarul Huda 2019, 7 (2), 1-4. https://doi.org/10.37824/jkqh.v7i2.2019.105.