Japan. Kōseishō. Daijin Kanbō. Sōmuka

• "Sensō no jinkō ni oyobosu eikyō" ni kansuru kenkyu happyō yōshi
• Kōseishō kankei kōeki hōjin yōran
• Nihon no nenkin iryō hoken
• Seikatsu jittai no bunseki
• Shakai hoshō no jinkōgakuteki kenkyū