Muhammad Bilal Nazir, Malik Sikander Hayat Khiyal and Tauseef Ur Rahman
Information Technology Journal 5 ( 2 ): 373 - 385 , 2006
Muhammad Shafi Nazir, Abdul Jabbar, Abdul Quddus khalid, Shah Nawaz and Tariq Mahmood
Pakistan Journal of Biological Sciences 3 ( 9 ): 1367 - 1369 , 2000