Yoka Kaihatsu Sentā (Japan)

• "Nichi-Bei-Ō kachikan chōsa" 7-kakoku dētabukku
• 90-nendai no rejā maindo
• Chiiki ni okeru seikatsu kanren jōhō sābisugyō shinkō bijon sakutei chōsa hōkokusho
• Chōki bakansu no sutairu to nīzu ni kansuru chōsa kenkyū
• Jinzai no katsuyō to ikusei ni kansuru chōsa kenkyū
• Josei shūrō to atarashii hatarakikata ni kansuru chōsa kenkyū
• Kōreika shakai to yoka ni kansuru chōsa kenkyū
• Nogawa kōsu
• Ohoribata kōsu
• Seikatsu jikan jūnanka ni kansuru chōsa kenkyū
• Senju kōsu
• Shōwa 62-nendo yoka ishiki no henka ga waga kuni keizai shakai ni ataeru eikyō ni kansuru chōsa kenkyū hōkokusho