Volume 7.1, Issue 13.14, January 1980, Pages 255-262
H. IBRAHIM; N.A. MISK; A.A. AMER; FATHMA EL TAYEB
Volume 6, Issue 11.12, January 1979, Pages 1-11
A. HIFNY; N.A. MISK
Volume 6, Issue 11.12, January 1979, Pages 143-156
H.A.M. SALEM; A.A. AMER; N.A. MISK; T.A. EL-ALLAWY