Volume 21, Issue 1, January 2007, Pages 113-120
Abdel Moniem I. Fathi; Samir A.M. Moussa; Ibrahim M.A. Hegazi
Volume 21, Issue 1, January 2007, Pages 130-140
Abdel Moniem I. Fathi; Hamdi I. El Desouky; Nadia Kh. Kandel