(3GdYQGb h Ohd GdLhGQ ZjQ GdYQHj (B/ s - (3MdbI fbGT bSe GdOQGSGJ GdSjGSjI (B( (3HZOGO (B: 1997 )s; (3bSe GdOQGSGJ GdSjGSjIs ((3HZOGO (B:s (3OGQ GdMceI,s, 1997)
Keywords: (3GdYdGbGJ GdOhdjIs; (3GdYQGbs; (3EjQGfs; (3JQcjGs