UthiaR., AnandaE., and IforaI. “Gynura Procumbens (Lour.) Merr. Leaves Against Mice’s Antibody Titer”. JPK : Jurnal Proteksi Kesehatan, Vol. 8, no. 2, Dec. 2019, pp. 13-19, doi:10.36929/jpk.v8i2.154.