Toshio Kage

• Ajia no naka no Sengoku daimyō
• Ajian sengoku daimyō Ōtomo-shi no kenkyū
• Asada Gōryū
• Egakareta Zabieru to sengoku Nihon
• Funai to Usuki kara sengoku no sekai ga mieru
• Iō to gin no Muromachi, sengoku
• Kōsakusuru shūkyō to minzoku
• Ōtomo Yoshishige
• Ōuchi to Ōtomo
• Sengoku daimyō no doboku jigyō
• Sengoku daimyō no gaikō to toshi ryūtsū
• Sengoku daimyō no kaigai kōeki