Volume 18, Issue 3, September 1993, Pages 61-78
Hassan Younes; Kamel Yassin; El-Hussieny El-Hussieny Mohamed Abd-Raboh
Volume 18, Issue 2, June 1993, Pages 30-40
El-Hussieny El-Hussieny Abd-Raboh
Volume 17, Issue 1, March 1992, Pages 1-18
K. Yassin; El-Hussieny Mohamed Abd-Raboh; M. S. Al-Domany