M. Atiqullah Khan, S.M. Saifullah, S.S. Shaukat, Naemullah Qureshi and F. Chaghtai
Pakistan Journal of Biological Sciences 2 ( 1 ): 178 - 181 , 1999
M. Farhanullah Khan, M. Atiqullah Khan and Rahila Tabassum
Pakistan Journal of Biological Sciences 3 ( 6 ): 1037 - 1038 , 2000