Volume 6, Issue 31, November 2020, Pages 871-935
awatif bahig mohamed ibrahim ibrahim; Sakeina AMeen Mahmood ELSAIED
Volume 6, Issue 29, July 2020, Pages 291-311
Sakeina AMeen Mahmood ELSAIED; Mahmoud Abdel Halim Abdel Gawad
Volume 6, Issue 27, March 2020, Pages 195-218
Sakeina AMeen Mahmood ELSAIED; Wafaa elsaied ali