Volume 46, Issue 2, December 2018, Pages 61-84
Ehab A.D. Sarhan; Ehab M.M. El-Far; Azza M.Y. Ebrahiem
Volume 38, Issue 1, 2010, Pages 201-211
Ehab M. El-Far; Naglaa A.S. Muhanna; Tomader G. Abdel-Rahman