(3hSjW GdbVGA GdEOQi (B/s - (3CfhQ CMeO QSdGfs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI ,s, 2000)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbVGA GdEOGQj hhXGFags