Asad Jan, Qazi M. Hassan, Tahira Fatima and Tayyab Hasnain
Journal of Biological Sciences 1 ( 5 ): 387 - 390 , 2001
Tahira Fatima, Asad Jan, Tayyab Husnain and Sheikh Riazuddin
Pakistan Journal of Biological Sciences 5 ( 6 ): 679 - 682 , 2002
Khurram Bashir, Muhammad Rafiq, Tahira Fatima, Tayyab Husnain and Sheikh Riazuddin
Pakistan Journal of Biological Sciences 7 ( 3 ): 318 - 323 , 2004
Sultana Rasheed, Tahira Fatima, Khurram Bashir, Tayyab Husnain and Shiekh Riazuddin
Pakistan Journal of Biological Sciences 6 ( 9 ): 844 - 848 , 2003