S.A. Raffi, M.A. Newaz and N. Khan
Asian Journal of Plant Sciences 3 ( 2 ): 239 - 242 , 2004
N. Khan, M.S. Alam and U.K. Nath
Journal of Biological Sciences 4 ( 2 ): 189 - 191 , 2004
T. Mohsin, N. Khan and F.N. Naqvi
Pakistan Journal of Biological Sciences 9 ( 1 ): 160 - 163 , 2006