Volume 47, Issue 5, October 2016, Pages 56-71
Volume 38, Issue 3, December 2007, Pages 1-36
K. A. Hamam
Volume 37, Issue 4, December 2006, Pages 61-76
M. K. Omara; N. A. Mohamed; E. N.El-Sayed; M. A. El-Rawy,