ROSHAN ALI; GHOSIA LUTFULLAH; ZAHID KHAN; ASHFAQ AHMAD(Karachi: International Centre for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, 2011-06-15)
GHOSIA LUTFUAALAH; AZRA AMJAD; FARHAT AMIN; ASHFAQ AHMAD(Karachi: International Centre for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, 2011-06-23)