S. Z. Mustafa, P.N.Fox, N.I.Hashmi, N.S.Kisana, Shaheena Yasmin, Iftikhar Ahmed, M.Y.Mujahid and A.Majid
Pakistan Journal of Biological Sciences 3 ( 4 ): 699 - 704 , 2000
M. Y. Mujahid, N.S.Kisana, Zaheer Ahmad, Iftikhar Ahmad, S.Z.Mustafa and A.Majid
Pakistan Journal of Biological Sciences 3 ( 7 ): 1148 - 1151 , 2000