Tokyo (Japan). Rōdō Keizaikyoku. Kikaku Chōsaka

• "Tonai ni okeru jōhō sangyō e no tenshoku no jittai" ni kansuru chōsa hōkokusho
• Sangyō kūdōka no eikyō ni kansuru chōsa hōkokusho
• Tonai chūshō seizōgyō no gijutsu ginō shūseki to jinzai ikusei ni kansuru chōsa hōkokusho