(3GNJHGQGJ GdPcGA hGdTNUjI (B/ s - (3YHO GdcGaj, ESeGYjd YHO GdaJGMs ((3GdEScfOQjI, eUQ (B:s (3eQcR GdEScfOQjI ddcJGH,s, 2001)
(3HHdjhLQGajI (B: (3U(B. 264-274.s
Keywords: (3GNJHGQGJ GdPcGAs; (3GdGNJHGQGJ GdTNUjIs