Volume 36.2, Issue 72, January 1997, Pages 297-305
RABAB M. KADRY; A. ABDEL MALAK; Z.M. KOLEAF; N.A. EL-DANAF
Volume 17.1, Issue 33, May 1986, Pages 66-73
H. YOUSSEF; ZEINAB EL-SAYED; M. EL-TARABELY; N.A. EL-DANAF