(3GdChQGb GdJLGQjI aj GdfXGe GdSYhOj (B/s - (3GdYeQGf, YHO Gddg eMeOs ((3GdQjGV (B:s (3eYgO GdEOGQI GdYGeI, GdEOGQI GdYGeI ddHMhK,s, 1995)
(3HHdjhLQGajI (B: (3U(B. 371-374.s
Keywords: (3GdChQGb GdJLGQjIs -- (3bhGfjf hJTQjYGJs -- (3GdSYhOjIs