(3LPhQ GdacQ GdESdGej aj GdaQb GdESdGejI Hjf GdJWQa h GdCQgGHs - (3UGOb, MSfs ((3GdbGgQIs (3GdgjFI GdeUQjI GdYGeI ddcJGHs, 1997)
4
Keywords: (3GdESdGe (B- (3JGQjNs