Pages 1-6
AHMED SAAD; EHAB SALAMA; HANAN EL DAHSHAN; NOHA TALAAT
Pages 1-15
F.A. KHALAFALLA; N.S. N.S. ABDEL-ATTY; SOAD NASEF; HANAFY ADEL
Pages 44-50
ZAITOUN A.M.A.; ABD-EL-WAHED A.E.A.; ALI ALSAGHER; HUSSIEN WALAA