Volume 56, Issue 127, October 2010, Pages 1-13
S.M. SAYED; H.H. ESSA; N.H. MAKAR; O.A. SADEK; A.M. MANAA
Volume 56, Issue 124, January 2010, Pages 1-10
H.H. ESSA; N.H. MAKAR; A.M. MANAA
Volume 56, Issue 124, January 2010, Pages 1-10
A.M. MANAA; H.H. ESSA; N.H. MAKAR
Volume 55, Issue 121, April 2009, Pages 1-10
H.H. ESSA; A.M. MANAA; N.H. MAKAR; S.M. SAYED.
Volume 53, Issue 113, April 2007, Pages 1-14
H.H. ESSA; A.M. ABD EL-MALEK; EMAN EZ-ALDAWLA SHARKAWY
Volume 52, Issue 110, July 2006, Pages 65-74
A.M. ABD EL-MALEK; H.H. ESSA; N.H. MAKAR; R.S. REFAIE