Pages 11-24
Osman E. Mohammed; Abdel Rahman A. EL Mahdi
Pages 25-37
Abdul Aziz A. Bawazir
Pages 67-78
Salim Mohamed Salim Bin Salman.
Pages 79-96
Rafat A.A. Mostafa Mostafa
Pages 97-106
Moamen M. Al-Wasfy; Abdel-Aziz S. El-Khawaga
Pages 121-133
Moamen M. Al-Wasfy; Abdel-Aziz S. El-Khawaga