(3GdELQGAGJ GdLfGFjI ai GdJTQjY GdeUQj(B.s (3GdLRA GdKGfi (B,s (3GdeMGceI(B-(3GdMce(B-(3GdYjhH GdELQGFjI (B-(3WQb GdWYf(B/s - (3eCehf eMeO SdGegs ((3GdbGgQI (B:s (3OGQ GdacQ GdYQHj (B; (3eWHYI LGeYI GdbGgQI (B,s, 1992)
(3GdfU HGddZI GdYQHjIs
Keywords: (3bGfhf LfGFjs; (3bGfhf GdELQGAGJ GdLfGFjIs