“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”. Jurnal Kesehatan Qamarul Huda, vol. 7, no. 2, Dec. 2019, pp. 1-4, https://doi.org/10.37824/jkqh.v7i2.2019.105.