Chiba Shōka Daigaku. Seisaku Kenkyūka. Risuku Komyunikēshon Kenkyūkai

• Genshiryoku hatsudensho no shinsetsu, unʼei, kensa no kotonatta jōtai ni okeru anzen hyōka no jōhō kaiji, risuku komyunikēshon no hōhō ni kansuru chōsa kenkyū