Volume 50, Issue 4, December 2019, Pages 73-86
Volume 41, Issue 2, May 2010, Pages 216-221
Khalifa, H. Abdel-Gawad; Abd-Elsattar, M.Metwally; Nashaat, A.Mahmoud; Mahmoud, M. A. Omar
Volume 38, Issue 1, March 2007, Pages 127-140
Farghal A.A. Slman