Suprayitno, Guruh, et al. “White Ginger (Zingiber Officinale) Decoction As a Complementary Therapy to Reduce Blood Pressure in Elderly Patients With Hypertension”. Jurnal Keperawatan Florence Nightingale, vol. 8, no. 2, Dec. 2025, pp. 298-05, doi:10.52774/jkfn.v8i2.441.