Volume 7, Issue 2, 2019, Pages 62-80
Reda Abd El-Fatah Abo Gad; Safaa Mohamed El-Demerdash
Volume 9, Issue 1, 2013, Pages 31-42
Eman Mohammed Abd El-Aziz; Amany Sobhy Sorour
Volume 7, Issue 1, 2011, Pages 51-65
Sahar A. Abood; Karima H. Abdel-Hafz