Volume 34, Issue 2, 2011, Pages 181-187
Omar M. M. Mohafez; Mohamed A. Abd EL-Aziz; Ahmed A. Abd El-Ghany
Volume 34, Issue 2, 2011, Pages 121-129
Alaa Mohamed Nafady; Omar Mahmoud Mohamed Mohafez
Volume 33, Issue 2, 2010, Pages 169-177
Omar Mahmoud Mohamed Mohafez; Ihab Talat Abdel-Raheem; Alaa Mohamed Nafady