Nurviana, Vera, et al. “Antibacterial Activity of Defatted Ethanolic Extract of Cordyline Fruticosa (L.) A.Chev Leaves Against Respiratory Pathogen”. Jurnal Sains Farmasi & Klinis, vol. 13, no. 1, June 2026, pp. 8-14, doi:10.25077/jsfk.13.1.8-14.2026.