Sudjarwo, S., S. H. Khatimah, and F. . . Annuryanti. “Determination of Quercetin in Soursop (Annona Muricata Linn.) Leaves 10 Ml Liquid Preparation Using UV-Spectroscopic Method”. Berkala Ilmiah Kimia Farmasi, vol. 9, no. 2, Dec. 2022, pp. 31-35, doi:10.20473/bikfar.v9i2.42688.