Sadia Alam, Asghar Ali, I.A. Qamar, M. Arshad and Salim Sheikh
Journal of Biological Sciences 1 ( 5 ): 330 - 331 , 2001
Maliha Rashid, Samina Khalil, Najma Ayub, Sadia Alam and Farooq Latif
Pakistan Journal of Biological Sciences 7 ( 2 ): 187 - 196 , 2004