Volume 11, Issue 2, December 2002, Pages 1-6
Atef El-Gharbawy
Volume 11, Issue 2, December 2002, Pages 7-13
Atef El-Gharbawy
Volume 10, Issue 2, December 2001, Pages 1-4
Atef El-Gharbawy
Volume 9, Issue 2, December 2000, Pages 15-19
Ahmed Ahmed; Mona Abd El-Aziz; Atef El-Gharbawy; Adel Soliman