Nihon sekaikan - Soga, Ryōjin 1875-1971 (Yayoi Shobō, 1974)
"Honsho wa Shōwa 19-nen 1-gatsu Tōkyō-to Kyōgaku Renseijo Shusai Chūtō Kyōin Renseikai ni okeru ... kōen no sokkiroku"