Volume 34, Issue 1, January 2011, Pages 31-45
Ashraf Kamel; Esam Kamel
Volume 34, Issue 1, January 2011, Pages 102-118
Ashraf Kamel
Volume 32, Issue 1, January 2009, Pages 47-57
Mona Ali; Nermine Nosseir; Omayma Mahmoud; Mahmoud Khalil