(3GdUMI hGdSdGeIGdYGeI (B/s - (3GdTGYQ (B, (3YHO GdeLjOs; (3UdGM GHh GdQH (B,s; (3GdUaOj (B, (3YUGe s; (3GdehSi (B, (3YQhHIs ((3YeGf (B:s (3OGQ GdYdejI ddfTQ hGdJhRjY (B,s, 2001)