(3GdefJbi ef aQGFO GdahGFO (B/s - (3GdYKjejf, eMeO Hf UGdM Hf eMeOs 1347-1421 (3gLQjs ((3GdQjGV (B:s (3OGQ GdhWf ddfTQ ,s, 1991)
Keywords: (3GdESdGes -- (3eJaQbGJs