Daiichi Kangin Sōgō Kenkyūjo

• Ajia kinʾyū shijō
• Nihon no ginkō kore kara no 10-nen
• Tainichi chokusetsu tōshi ga chiiki keizai ni ataeru inpakuto ni kansuru chōsa hōkokusho
• Tainichi chokusetsu tōshi sokushin shisaku ni kansuru chōsa hōkokusho