Volume 34, Issue 1, June 2014, Pages 88-103
Hussein Sakr; Abd El-Aziz Hussein; Khaled Khalil; Amr Abbas
Volume 30, Issue 2, June 2010, Pages 65-86
Amr Abbas; Abd El-Aziz Hussein; Gehan El Wakil; Ayman Elsamanoudy; Aza Abd El Aziz