Volume 20, Issue 1, January 2006, Pages 186-192
Narmen A. Youssef; Farouk F.M. Mostafa; Adel A. M. Okil; Huda R. Khalil
Volume 19, Issue 1, January 2005, Pages 17-23
Narmen A. Youssef; Seham S. El-Gendi