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<xml><bibliography><APA>Charin Sripetch. (1997) Effects of biologically produced surfactants on biodegradation of petroleum hydrocarbons. Mahidol University,:ม.ป.ท.</APA><Chicago>Charin Sripetch. 1997. Effects of biologically produced surfactants on biodegradation of petroleum hydrocarbons. ม.ป.ท.:Mahidol University,;</Chicago><MLA>Charin Sripetch.  Effects of biologically produced surfactants on biodegradation of petroleum hydrocarbons.  ม.ป.ท.:Mahidol University, 1997. Print.</MLA></bibliography></xml>
