Ayesha Khan, Ikram-ul -Haq, Waseem Ahmad Butt and Sikander Ali
Biotechnology 2 ( 3 ): 185 - 190 , 2003
Ikram -ul-Haq, Ayesha Khan, Waseem Ahmad Butt, Sikander Ali and M. A. Qadeer
Journal of Biological Sciences 2 ( 2 ): 143 - 144 , 2002
Ikram-ul- Haq, Amna Ehsan, Waseem Ahmad Butt and Sikander Ali
Pakistan Journal of Biological Sciences 5 ( 12 ): 1309 - 1310 , 2002