20040609172900.0 0549-3420 0549-3420 Nihon Jūtaku Kōdan chōsa kenkyū hōkokushū Nihon Jūtaku Kōdan chōsa kenkyū hōkokushū. 0549-3420 Nihon Jūtaku Kōdan chōsa kenkyū hōkokushū Japan Nihon Jūtaku Kōdan chōsa kenkyū hōkokushū. 0549-3420 0549-3420