2000 (3eLehYI GdeYGgOGJ (B/s (3GdLRA GdKGfj,s (3GdeYGgOGJ h GdCJaGbGJ eJYOOI GdCWQGa (B/s - (3EYOGO TFhf GdeYGgOGJ GdOhdjIs; (3hRGQI GdNGQLjIs ((3GdbGgQI(B:s (3GdgjFI GdYGeI dTFhf GdeWGHY GdCejQjI (B,s, 2001)
(3GdfU HGddZI GdYQHjIs
Keywords: (3bGfhf Ohdj YGes; (3GdeYGgOGJ h GdGJaGbGJ GdOhdjIs; (3GdbGfhf GdOhdj GdYGes