Volume 40, Issue 2, April 2017, Pages 73-78
H.A. Mohamed; H.A. Khattab; A. Mobarka; G.A. Morsy
Volume 38, Issue 1, January 2015, Pages 9-13
H.A. Khattab; M.F Awad-alla; S.M Allam; S.M farrag
Volume 37, Issue 2, April 2014, Pages 137-141
H.A. Khattab; G.A. Morsy; N. S. Nassar