(3GdUfGYGJ GdcejGFjI GdJLGQjI (B((3GdWQb GdYedjI GJVjQ (B500 (3eQcH ef (B) (3OgGfGJ (B, (3eHjOGJ (B, (3Mddi HGdeYGOg eSJMdHGJ GdeQGjG hGdGSge GdfGQjI (B/ s - (3YHOGdcQje OQhjTs ([S.N] : (3OGQ GdeYQaI , s, 1992)