Fatmala, Yunita, et al. “Estrogenic Effects of Tapak Dara (Catharantus Roseus) Leaf Methanol Extract on The Estrus Cycle of Adult Female Mice (Mus Musculus) Balb C Strain”. Jurnal Biologi Tropis, vol. 22, no. 3, Aug. 2022, pp. 803-8, doi:10.29303/jbt.v22i3.3604.