Volume 10, Issue 2, August 2021, Pages 253-270
Sayed S. Abd El-Aziz; Soad A. Ibrahim; Ragab M. Hefny; Mohamed K. Rehan
Volume 5, Issue 1, April 2016, Pages 139-154
Mahmoud M. Nageb; Ragab M. Hefny; Reyad I.M. Redwan; Soad A. Ibrahim