Volume 29.1, Issue 57, April 1993, Pages 110-118
H. YOUSSEF; M.R.A. RASHWAN; Sh.M. FATHI; S. AHMED
Volume 28.2, Issue 56, January 1993, Pages 211-221
H. YOUSSEF; M.R.A. RASHWAN; SH.M. FATHI; S. AHMED
Volume 28.2, Issue 56, January 1993, Pages 222-232
H. YOUSSEF; M.R.A. RASHWAN; SH. M. FATHI; S. AHMED
Volume 28.1, Issue 55, October 1992, Pages 180-188
SH.M. FATHI; M.R.A. RASHWAN; S.I. EL-SYIAD
Volume 27.2, Issue 54, July 1992, Pages 121-129
SH.M. FATHI; M.R.A. RASHWAN
Volume 21.2, Issue 42, May 1989, Pages 76-79
M.K. MOUSTAFA; M.R.A. RASHWAN; A A-H. AHMED