Anggraini, S. S., S. A. Nur, H. D. Morika, and R. I. Sari Dewi. “The Influence of Rosella Flower Tea on Blood Pressure Reduction in Hypertension Patients”. International Journal Of Community Medicine And Public Health, vol. 7, no. 12, Nov. 2020, pp. 4777-80, doi:10.18203/2394-6040.ijcmph20205149.