Azizollah Ebrahimi, Najmeh Tashi and Saeid Karimi 2011. Biosurfactant Producing Bacteria on Oily Areas of Ruminant Skin: Biosurfactant Producing Bacteria on Oily Areas of Ruminant Skin. Iranian Journal of Pharmaceutical Sciences. 7, 2 (Apr. 2011), 117–121. DOI:https://doi.org/10.22037/ijps.v7.41324.