Japan. Tōhoku Keizai Sangyōkyoku. Shōgyō Ryūtsū Sābisu Sangyōka

• Chūshin shigaichi kasseika fukyū keihatsu jigyō hōkokusho
• Heisei 17-nendo chūshin shigaichi jittai chōsa fukyū keihatsu jigyō hōkokusho