Volume 40, OCTOBER- DECEMBER, December 2019, Pages 683-693
Osama R. Abd El-Kawy; Gamal M. Flous; Fawzy H. Abdel-Kader; Ahmad S. Suliman
Volume 37, October-December, December 2016, Pages 771-780
Ramzy M. R. Hedia; Osama R. Abd Elkawy