(3GdNdaGA GdQGTOhf Hjf GdGSJNdGa hGdGSJTgGO eTGgO hdbWGJ ef GUY GdQhGjGJ YHQZWGJ(B:s - (3GdNGdOj ,UdGM YHOGdaJGM s ((3HjQhJ (B:s (3OGQ Gdbde ,s, 1999)
Keywords: (3GdNdaGA GdQGTOhf s