Volume 66, Issue 164, January 2020, Pages 1-9
M.I. EL-GAOS; M.R. KHALIL; GHADA ALLAM ABD EL-DAYEM
Volume 57, Issue 131, October 2011, Pages 1-17
SAMIA M. MOHAMED; SAMIA I. AFIFI
Volume 55, Issue 121, April 2009, Pages 1-10
F.A. EL-SHABOURY; OLA A.A. BASHA