Volume 4.1, Issue 7, January 1977, Pages 51-61
H,A. Shehata; A.A. Hegazy; M.I. Dissouky; Samira Elgibaly; Dawlat. Amin
Volume 4.1, Issue 7, January 1977, Pages 117-124
o.A., Atalah; M.M. Ayoub; A.A. Hegazy