Volume 20, Issue 1, March 2019, Pages 1-5
Mohamed Youssef; Medhat Nassif; sabry El-khodery; Maged El-ashker; Alshimaa Farag
Volume 12, Issue 1, June 2010, Pages 17-23
M. Al-Ghamdi
Volume 1, Issue 1, June 1999, Pages 149-164
Taha Fouda; Adel Zaghloul; Gehad El-sayed