Nihon Kōgyō Kurabu. Chōsaka

• Eikoku mengyō no suitai to sono taisaku
• Honpō kōgyō ni okeru rieki bunpai narabini ruiji seido ni kansuru chōsa
• Kin yushutsu kaikin mondai ni kansuru Nihon Kōgyō Kurabu kaiin no iken
• Kyūryō hiyōsha no shūgyō jikan mondai ni kansuru shiryō
• 日本共產黨事件顚末