Volume 29, Issue 3, July 2012, Pages 1067-1086
Asmaa A. Mohamed; M.A Mohamed; A.H Gomaa; M.A. Aboamera; A.T. Taha
Volume 26, Issue 3, July 2009, Pages 1223-1244
M.A Aboamera; A.H Gomaa; Y.M.M Atta