Volume 56, Issue 127, October 2010, Pages 1-12
A.A. AMER; A.S. AIAD; M.A. ABD-ALLAH
Volume 55, Issue 123, October 2009, Pages 1-10
A.A. AMER; A.S. AIAD
Volume 54, Issue 119, October 2008, Pages 1-8
A.S. AIAD
Volume 54, Issue 119, October 2008, Pages 1-14
A.A. AMER; A.S. AIAD; NABILA F. SOLIMAN