Nazir Hussain, G. D. Khan, M. Tahir, F. Mujeeb, M. Arshad Ullah and Afzal Ahmad
Asian Journal of Plant Sciences 1 ( 1 ): 15 - 17 , 2002
Nazir Hussain, Zahid Saeed, M. Tahir, Abdul Bari, N. M. Hassan and Afzal Ahmad
Journal of Biological Sciences 2 ( 2 ): 89 - 91 , 2002