Titsingh, Isaac. (1834). Annales des empereurs du Japon, pp. 178–181; Brown, Delmer et al. (1979). Gukanshō, pp. 320–322; Varley, H. Paul. (1980). Jinnō Shōtōki. pp. 203–204.
Titsingh, p. 178; Brown, pp. 320; Varley, p. 44. [A distinct act of senso is unrecognized prior to Emperor Tenji; and all sovereigns except Jitō, Yōzei, Go-Toba, and Fushimi have senso and sokui in the same year until the reign of Emperor Go-Murakami.]
