(3GdcPH h CKQg aj GdCfSGf (B/ s - (3CSYO, jhSa ejNGFjds ((3GdbGgQg (B:s (3OGQ ZQjH ddWHGYg h GdfTQ,s, 1998)
Keywords: (3GdcPHs; (3GdCOGH GdELJeGYjIs