Volume 64, Issue 157, April 2018, Pages 187-192
HASSAN MAHMOUD; MOSTAFA ABDELRAHMAN
Volume 64, Issue 156, January 2018, Pages 123-128
HASSAN MAHMOUD; ALSAGHER ALI; RANIA HAMADA ALI
Volume 62, Issue 148, January 2016, Pages 1-5
HASSAN MAHMOUD; ALSAGHER ALI; ADEL AHMED; EBTSAM ALI