Volume 21, Issue 1, March 2011, Pages 59-66
M.M.A. Hussein; W. H. Hassan
Volume 20, Issue 2, March 2010, Pages 7-15
W. H. Hassan; Mona A. El-Shabrawy; E. G. Sadek
Volume 20, Issue 2, March 2010, Pages 16-24
W. H. Hassan; A. E. Abdel-Ghany
Volume 17, Issue 2, March 2007, Pages 15-20
W. H. Hassan
Volume 17, Issue 1, March 2007, Pages 56-60
F. R. El-Seedy; Sohair S. Elyas; W. H. Hassan; E. A. Nasr