Volume 41, Issue 1, March 2016, Pages 7-17
Sahar Sedky Kaddah; K. M. Abo-Al-Ez; Tamer F. Megahed; M. G. Osman
Volume 17, Issue 3, September 1992, Pages 17-38
Mohamed Adel Rateb El-Sayes; M. G. Osman; Sahar Sidky Kaddah