(3GdGYdGe h GdKbGaI h GdghjI aj GdhWf GdYQHj (B/s - (3YOdj, ghjOGs ((3GdbGgQI (B:s (3OGQ GdCejf ,s, 2003)
Keywords: (3GdGYdGe s; (3GdKbGaIs; (3GdhWf GdYQHjs