(3GMdGe GdjbXI eGdgG heG YdjgG (B/ s - (3jhSa ejNGFjd GSYOs ((3GdbGgQI (B: s (3OGQ ZQjH ddWHGYI hGdfTQ hGdJhRjY , s, 2000)
Keywords: (3GdJMdjd GdfaSis; (3GdGMdGes; (3GMdGe GdjbXIs