Fahmi, Z.M., Khadeem, E.J., Hasan, H.F. and Luaibi, O.K. 2014. The Antibacterial Effect of Phytosterols Isolated from Echinops heterophyllus in Comparison with MEBO® and Standard Antimicrobial Agents. Al Mustansiriyah Journal of Pharmaceutical Sciences. 14, 2 (Dec. 2014), 116–128. DOI:https://doi.org/10.32947/ajps.v14i2.154.