(3GdJTQjYGJ GdGbJUGOjI (B/s - (3YQaGJ GdJgGej GHQGgjes ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 2000)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeGdjI GdYGeI h GdJTQjY GdVQjHj s