Bahar, Muh. Akbar, et al. “Bioassay-Guided Fractination of Antimitotic Compound from Ongkea Cortex (Mezzettia Parviflora Becc) Towards Sea Urchin Eggs”. Journal of Tropical Pharmacy and Chemistry, vol. 3, no. 1, June 2015, pp. 49-54, doi:10.25026/jtpc.v3i1.88.