Japan. Un'yushō

• 21-seiki o tenbōshita un'yu gijutsu shisaku
• 21世紀に向けての 90年代の交通政策の基本的課題への対応について
• Chūgoku un'yu keizai chōsa (tetsudō)
• Denpa kōhō yōgo jiten
• Nihon annaiki
• Ryokaku unsō sābisu ni kakawaru naigai kakakusa jōhō shūshū bunseki jigyō hōkokusho
• Takuhaibin tō butsuryū sābisu ni kakawaru Naigai kakakusa chōsa hōkokusho
• Tei nenpisha no jidōsah shutokuzei, keigen taishōsha ichiranhyō
• Un'yu kokusai kyōryoku no genkyō
• Un'yushō kenkyū kikan tō ni okeru kenkyū seika no katsuyō hōsaku
• Yunyū sokushin taisei seibi kōchiku no ikkan to shite no kamotsu ryūtsū shisetsu no seibi hōsaku oyobi sono kōritsuteki haichi no arikata ni kansuru chōsa hōkokusho
• Yusō anzen taisaku chōsa hōkokusho