Volume 7, Issue 2, December 1982, Pages 72-82
Reda M. K. El-Dewieny; Y. A. Abed; H. A. El-Behairy
Volume 6, Issue 2, December 1981, Pages 34-54
M. M. El-Hefnawi; A. Abd El-Magid; Y. Abed; M. Abo-Elfetoh
Volume 6, Issue 1, June 1981, Pages 21-36
Y. Abed; Mohamed Abd El-Moniem Tantawy; M. El-Maghraby
Volume 6, Issue 1, June 1981, Pages 42-54
Y. Abed
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