Volume 21.1, Issue 41, January 1989, Pages 51-54
E-K. NAFIE; M. EL-REHAWY; A.A IBRAHIM; S. KAM'EL; S. MOUSA; BAHY EL-GAMAL
Volume 21.1, Issue 41, January 1989, Pages 55-60
E.K. NAFIE; M. EL-REHAWY; A.A. IBRAHIM; S. MOUSA; S. KAMEL; BAHY EL-GAMAL