Volume 13, Issue 1, March 2020, Pages 89-98
Ashraf S. Elhalawany; Naglaa F. R.Ahmad Ahmad; Ahmad, I. Amer
Volume 10, Issue 7, November 2017, Pages 149-160
Ashraf S. Elhalawany
Volume 5, Issue 2, August 2012, Pages 205-216
Ashraf S. H. El-Halawany