20040609180600.0 Tokyo Daigaku Shakai Kagaku Kenkyūjo chōsa hōkoku. 0915-7069 0915-7069 Japan 0915-7069 Tokyo Daigaku Shakai Kagaku Kenkyūjo chōsa hōkoku. Tokyo Daigaku Shakai Kagaku Kenkyūjo chōsa hōkoku 0915-7069 Tokyo Daigaku Shakai Kagaku Kenkyūjo chōsa hōkoku 0915-7069