Volume 23.1, Issue 45, April 1990, Pages 80-89
M.M. TAHA; A.A. NAGI; M.S. YOUSSEF; S. MOUSA; A.H. BAYOUMI
Volume 23.1, Issue 45, April 1990, Pages 90-99
A.A. NAGI; M.S. YOUSSEF; M. TAHA; LAILA S. AHMED; M.T. NASSEF; A.H. BA YOUMI
Volume 22.2, Issue 44, January 1990, Pages 80-87
N, A. EL-DA NAF; A.A. NAGI; M.A. M. HAFEZ; MAYSA H.M. SHAKER; A.M. TAWFIK
Volume 22.2, Issue 44, January 1990, Pages 88-94
A.A. NAGI; M.S. YOUSSEF; S. MOUSA; A.H. BAYOUMI
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