Volume 39, Issue 3, September 2014, Pages 1-8
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Volume 16, Issue 2, December 1991, Pages 29-38
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Volume 14, Issue 2, December 1989, Pages 72-81
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Volume 14, Issue 1, June 1989, Pages 25-36
Ismail Mousa Mohamed El-Metwally Rakha; A. Shahin
Volume 14, Issue 1, June 1989, Pages 37-47
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Volume 13, Issue 2, December 1988, Pages 15-22
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Volume 13, Issue 2, December 1988, Pages 46-54
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Volume 12, Issue 1, June 1987, Pages 14-21
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Volume 12, Issue 1, June 1987, Pages 61-70
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