Grapard, Allan G. (1992). The protocol of the gods: a study of the Kasuga cult in Japanese history. University of California Press. ISBN0520070976. OCLC25873140.
Cali, Joseph (2013). Shinto shrines: a guide to the sacred sites of Japan's ancient religion. University of Hawai'i Press. ISBN9780824837136. OCLC1043096844.