Volume 27, Issue 2, December 2004, Pages 269-280
Ibrahim Hassan Refaat
Volume 22, Issue 2, December 1999, Pages 191-196
Horria A. Mohamed; Ibrahim H. Refaat
Volume 18, Issue 2, December 1995, Pages 135-141
Ibrahim H. Refaat
Volume 17, Issue 1, July 1994, Pages 65-71
Gamal A. Saleh; Hassan F. Askal; Osama H. Abdelmageed; Ibrahim H. Refaat
Volume 17, Issue 1, July 1994, Pages 87-94
Ibrahim H. Refaat; Osama H. Abdelmageed; Hassan F. Askal; Gamal A. Saleh