Volume 27, Issue 3, September 2008, Pages 45-50
10.30492/ijcce.2008.6966
Sima Askari; Rouein Halladj; Manouchehr Nikazar
Volume 26, Issue 4, December 2007, Pages 83-92
10.30492/ijcce.2007.7605
Shaban E. Ghazy; Ahmed H. Ragab