Volume 47, 6-1, December 2016, Pages 34-48
Volume 47, 6-2, December 2016, Pages 473-483
Volume 43, Issue 6, December 2012, Pages 84-104
, M. A Youssef; M. M. A Omar; H. A.E El-bardisy
Volume 40, Issue 2, December 2009, Pages 37-68
,A. Metwally; M. M. Elakkad Elakkad; Mohamed M.M. Ahmed