Volume 50, Issue 2, June 2019, Pages 272-288
S. M Ismail; F. S. El-Nakhlawy
Volume 49, Issue 4, December 2018, Pages 44-63
Ghada A. Mahmoud; W A Hamd-Alla; M Hefzy
Volume 48, 1-1, February 2017, Pages 331-346
Volume 47, Issue 3, June 2016, Pages 104-119
Volume 38, Issue 1, March 2007, Pages 15-29
E. A Ali