Volume 13, Issue 2, October 2015, Pages 1-16
Dalal Y. Rizk; Yamen M. Hegazy; Atef F. Orieby; Magdy H AL-Gaabary
Volume 11, Issue 1, April 2013, Pages 41-61
Atef F. Oreiby; Salama A. Osman; Yamen, M. Hegazy; Yasser A. Ghanem; Magdy H. Al-Gaabary