Yosaburō Nagakubo

• Chūshi jikatsu keizai kensetsu mondai no uchi ni seikisuru Chūshi kōgyō mondai ni kansuru shiryō (sekitan o nozoku)
• Naka Shina ni okeru sekitan no jikyūryō to jikyū jisoku o tatemae to seru baai no fusokuryō
• Shanhai tabako kōgyō no genjō to sono shr̄ai
• Yōsukō suisai no bunpu narabini shūkiritsu to sono saigai ippan