(3OQGSGJ EYdGejI (B/ s - (3eYhV, eMeOs; (3GdTfhaj, eMeO GdefUas; (3GdefjS(B, (3LeGd LGSes; (3YHO GdLdjd(B, (3YHOGdHGSW s; (3GdedG(B, (3JZQjOs; (3GdCfUGQj(B, (3MSjf CMeOs; (3GdQTjO(B, (3CfS eMeOs ((3GdchjJ (B: s (3OGQ GdcJGH GdMOjK, s, 2000)
Keywords: (3GdUMGaI(B.s; (3hSGFd GdEJUGd(B.s; (3GdJOQjS(B.s; (3GdEYdGe(B.s