Yani, A., and Venny Patricia. “Angiotensin Converting Enzyme (ACE) Inhibitory Activity, Toxicity Test, and Phytochemical Analysis of Roselle Flower Extract”. Window of Health : Jurnal Kesehatan, Vol. 7, no. 3, July 2024, pp. 245-5, doi:10.33096/woh.v7i2.1320.