Chihō no kokusaika to ibunka rikai : Heisei 3-nendo Kokusai Kōryū Kikin Chiiki Kōryū Shinkōshō Jushō Kinen Shinpojūmu : Heisei 4-nen 3-gatsu 3-nichi. - Heisei 3-nendo Kokusai Kōryū Kikin Chiiki Kōryū Shinkōshō Jushō Kinen Shinpojūmu (1992) (Tōkyō : Kokusai Kōryū Kikin, 1992)
Keywords: International communication