Muhammad Fahad Umer and M. Sikander Hayat Khiyal
Information Technology Journal 6 ( 1 ): 154 - 159 , 2007
Al-Muthanna Al-Hawamdeh, Adil Khan and M. Sikander Hayat Khiyal
Information Technology Journal 6 ( 4 ): 478 - 489 , 2007