(3GdeQLY GdTGed dfXGe GdJTZjd (BDOS : s c - (3YHO GdhgGe , eUWaj QVG s ((3eUQ (B: s (3OGQ GdChaSJ GdMOjKI , s, 1991)
Keywords: (3fXGe GdJTZjd OhS; EOGQI GdedaGJ; COhGJ GdfXGes