Volume 20.1, Issue 39, May 1988, Pages 60-65
L. SEDDIK; A. A. EL-TIMAWY; M. Y. EL-TAHTAWY; M.M. ZAKI; NABILA RASHWAN
Volume 20.1, Issue 39, May 1988, Pages 66-72
I. SEDDIK; A.M. AL-TIMAWY; AMANI G. THABIT; M. EL-TAHTAWY; M. EL TRABILI; S.H. AHMED; NABILA RASHWAN