(3GdfXGe GdbGfhfj ddGSJKeGQ GdCLfHj aj GdeedcI GdYQHjI GdSYhOjI (B/ s - (3ESeGYjd, eMeO MSjfs ((3GdQjGV (B:s (3eYgO GdEOGQI GdYGeI, GdEOGQI GdYGeI ddHMhK,s, 1994)
(3HHdjhLQGajI (B: (3U(B. 283-293.s
Keywords: (3GdGSJKeGQGJ GdCLfHjIs -- (3bhGfjf hJTQjYGJs -- (3GdSYhOjIs