Volume 42, Issue 2, June 2017, Pages 13-19
Mohamed Abdalla EL-Meniawi
Volume 34, Issue 1, March 2009, Pages 16-26
Abdel Monem Soleman; Ossama Aboulatta; Abdou Abbdel-Samad; Hanan Abdel-Aziz Niazi
Volume 33, Issue 2, June 2008, Pages 1-9
A. A. Ibrahim