Pages 18-30
M.A. Abdelsatar; H.M.M. Elmasry; M.A. Attia
Pages 72-84
M.A. Ali; E.A. Abd El-Lattief; R. Khalaphallah; S.S. Mohamed
Pages 96-111
E.M. Mehareb; H.M.Y. EL-Bakary; Fouz F.M. Abo elenen
Pages 129-139
A. Abo-Elwafa; B.R. Bakheit; A.M. El-Taib; N.Y. Noby
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