Japan. Kōseishō. Rōdōkyoku

• Honpō ni okeru kōjō taiiku undō chōsa
• Jūyō jigyōjō rōmu kanrirei unʼyō hōshin
• Rōmusha jūgo seikatsu sasshin ni tsuite
• Sangyō hōkoku undō kankei tsuc̄hō
• Sangyō hōkoku undō yōkō
• Shōwa jūyonen jūnigatsumatsu sangyōbetsu rōdōshasū shirabe