Lemilemu, F., S. Girmay, K. Shenkute, and M. Endale. “Antibacterial Steroids from Roots of Bersama Abyssinica”. Ethiopian Journal of Sciences and Sustainable Development, Vol. 7, no. 1, Jan. 2020, pp. 27-34, doi:10.20372/ejssdastu:v7.i1.2020.156.