(3Ndb GdWHjH GdeSde (B/s - (3GdSHGYj, RgjQ CMeO eMeO,s 1358 (3gLQjG(B-s ((3GdOeGe(B- (3GdSYhOjI (B:s (3OGQ GHf Gdbje,s, 1990)
Keywords: (3GdCNdGb GdESdGejIs; (3GdCNdGb GdWHjIs; (3GdESdGe hGdWHs; (3GdCNdGb GdegfjIs