Shahzada A. Saleem, M. Kaleem Baloch, Khalil Ahmed and Ahmad K. Baloch
Journal of Biological Sciences 2 ( 4 ): 238 - 242 , 2002
Muhammad Ayyaz Khan, Maraj Alam, Khalil Ahmed, Khalil Ahmed, Muddassir Zishan Akhtar and Ejaz Ahmad Khan
Pakistan Journal of Biological Sciences 4 ( 8 ): 988 - 989 , 2001