Volume 41, OCTOBER- DECEMBER, December 2020, Pages 489-511
M. A. Mahmoud El-Sayed; M. Taha El-Sayed
Volume 39, OCTOBER- DECEMBER, December 2018, Pages 722-738
El-Sayed, M. A. M; M.F. Attia; M. R, Hafez
Volume 37, January-March, March 2016, Pages 1-9
Aly H. El-Naggar; Naglaa M. Esmaiel; Assem A. El-Naggar