Volume 10.1, Issue 19, June 1982, Pages 161-164
F.E. SHAABAN; M. KADRI; H. SOMMAYA; A. MOUSTAFA; A.H. ABU HADEED
Volume 9, Issue 17.18, January 1982, Pages 153-159
F.E. SHAABAN; SOMMAYA, H.; EL. SAYED M.H.; KADRI, A. MOUSTAFA; A.H. ABU HADEED