(3GdajOjhcGSjJ (B:s (3CfeGW eTGgOJg h JCKjQGJg OQGSI ejOGfjI (B/s - (3GdMOjOj , efi SYjO s ((3GdbGgQI (B:s (3OGQ GdcJGH GdMOjK ,s, 1985)
Keywords: (3cGSjJ s; (3eTGgOI s; (3GdajOjhs; (3CfeGWs