Volume 23.1, Issue 45, April 1990, Pages 57-63
O.A. OSMAN; SEHAM ABDEL RASHEED; S. MAKEEN; R.A. DIMITRI; M.A. MOUAZ; R.R. YOUSSEF
Volume 23.1, Issue 45, April 1990, Pages 116-119
M. HAMDY; S. MAKEEN; H. FADL; T. NOUMAN
Volume 21.2, Issue 42, May 1989, Pages 93-100
M. HAMDY; H. ABD EL-RAHMAN; S. MAKEEN; H. FADL; T. NOUMAN