Volume 41, Issue 1, March 2010, Pages 81-92
Mohamed A.A. Sallam; K. M.H. Abd El-Moneem; M. A.E. Hassan; Hadeel M.M.Khalil,
Volume 39, Issue 4, December 2008, Pages 141-159
M. A.E. Hassan; M. F.F. Bereika; Heidi. I. G. Abo-Elnaga; Mohamed A.A. Sallam