Faisal G. Khamis, Abdul Aziz Jemain and Kamarulzaman Ibrahim
American Journal of Applied Sciences 5 ( 7 ): 881 - 890 , 2008
Faisal G. Khamis and Muna F. Hanoon
Journal of Modern Mathematics and Statistics 4 ( 3 ): 89 - 95 , 2010
Faisal G. Khamis and Muna F. Hanoon
Journal of Social Sciences 6 ( 1 ): 33 - 40 , 2010