Karim, M, A., M. I, and K. M.S. “Isolation and Characterization of a Flavonone From the Leaves of Sudanese Geigeria alata(Benth and Hook)- Asteraceae”. IJRDO - JOURNAL OF BIOLOGICAL SCIENCE, Vol. 3, no. 7, July 2017, pp. 01-12, doi:10.53555/bs.v3i7.1637.