Afsar Khan <br/><br/>
Isolation And Characterization Of Chemical Constituents Of Otostegia Limbata And Conyza Bonariensis  Ph.D. Thesis 

 - Karachi:  H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi  2009 
 -  Thesis, available in print and electronic formats, supervised by  Prof. Dr. Viqar Uddin Ahmad