Sultana, Tamanna, et al. “Hepatoprotective and Antibacterial Activity of Ursolic Acid Extracted from <i>Hedyotis corymbos< i>A L”. Bangladesh Journal of Scientific and Industrial Research, vol. 45, no. 1, June 2010, pp. 27-34, doi:10.3329/bjsir.v45i1.5174.