Pages 244-249
Mahmud A. A. Rahuma
Pages 268-281
El-Araby S.R. Salem; Sahar F. Tawfik; Mohamed A. Ghonema
Pages 282-295
Hend E. Habiba; Heba S.A. Salama; Abdelaziz T. Bondok
Pages 134-147
Manar Abdul Jabar Abbas; Mohammed Owaid Ghadeer Al- Ubaidi
Pages 177-189
El-Taib F Hussain; Mohi El-Din M.Retiba; Ahmed M. Ehmida