Volume 31, Issue 2, December 2016, Pages 248-253
Mahfouz MK; Omnia M. Abd El-Hamid; Emam MA; Menna. A. Bakr
Volume 28, Issue 1, March 2015, Pages 53-66
Omnia M. Abd El-Hamid; Nanees A. Abd-Elsamad; Ragab M. El-Shawarby