Volume 8, Issue 1, March 2021, Pages 181-194
E. Y. Abdul-Hafeez
Volume 7, Issue 4, December 2020, Pages 393-400
Essam Abdul-Hafeez; T. M.A. Soliman
Volume 7, Issue 2, June 2020, Pages 131-151
Gamal Mousa; Sayed Abdel-Rahman; E. Y. Abdul-Hafeez; Nesma EL-Sallamy