Volume 30.2, Issue 60, January 1994, Pages 139-146
MADEHA, A.A. AYOUB; M.A. ABD EL-KADER; I.Y. TORK
Volume 22.2, Issue 44, January 1990, Pages 128-135
M.A. YOUSEF; M.A. ABD EL-KADER; A.R. EL-SHEIKH; S.M. EL-MAGAWRY