(3GdYde hCNdGb Cgdg (B/s - (3GHf HGR, YHO GdYRjR Hf YHO Gddg Hf YHO GdQMefs 1332-1420 (3gLQjs ((3GdQjGV (B:s (3OGQ GdhWf ddfTQ,s, 1993)
Keywords: (3GdESdGe hGdYdhes; (3BOGH WGdH GdYdes