Volume 35, Issue 4, December 2010, Pages 22-34
S. Khalaf allah; M. G. Abdallah; A. El-Masry; K. S. El-Alfy
Volume 33, Issue 4, December 2008, Pages 22-34
S. Khalaf allah; M. G. Abdallah; A. El-Masry; K. S. El-Alfy
Volume 8, Issue 2, December 1983, Pages 1-19
Ahmed Abdel-Razik Zidan; T. Owais; M. Abdel-Moati; A. El-Masry