(3CUhd GdbGfhf GdOhdj GdYGe(B:s (3GdLeGYI GdOhdjI(B-(3GdbGYOI GdOhdjI(B-(3GdMjGI GdOhdjI(B/s - (3eMeO SGej YHOGdMejOs ((3GdGScfOQjI (B: s (3efTCI GdeYGQa , s, 1977)
(3jTJed Ydj HHdjhLQGajGJs
Keywords: (3GdbGfhf GdOhdj GdYGe(B.s