Volume 27, Issue 5, September 2021, Pages 924-931
Elsayed Abdel Kader Elsayed; Ragab Abdel Salam Mahfouz; kamal mahmoud mahmoud; Tamar Mohamed Mostafa
Volume 20, Issue 6, November and December 2017, Pages 1-9
Ragab mahfouz; Magdy Abdelsemei; Tamer Moustafa; Elsayed Mohammed