^Brinkley, p. 203., p. 203, at Google Books; excerpt, "Muchimaro's home, being in the south (nan) of the capital, was called Nan-ke; Fusazaki's, being in the north (hoku), was termed Hoku-ke; Umakai's was spoken of as Shiki-ke, since he presided over the Department of Ceremonies (shiki), and Maro's went by the name of Kyō-ke, this term also having reference to his office."
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^ abcBrinkley, Frank and Dairoku Kikuchi. (1915). A History of the Japanese People from the Earliest Times to the End of the Meiji Era. New York: Encyclopædia Britannica. OCLC 413099
^ abcdeKanai, Madoka; Nitta, Hideharu; Yamagiwa, Joseph Koshimi (1966). A topical history of Japan. Sub-Committee on Far Eastern Language Instruction of the Committee on Institutional Cooperation. p. 6.
^ abBrown, Delmer M. (1988). The Cambridge History of Japan: Volume 1. Cambridge University Press. ISBN9780521223522.
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^Kimoto, Yoshinobu (2004). "『牛屋大臣』藤原是公について" [On "Ushiya-Daijin" Fujiwara no Korekimi]. 奈良時代の藤原氏と諸氏族 [The Fujiwara Clan and Other Clans of the Nara Period] (in Japanese). Ohfu.
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^ ab 公卿補任 [Kugyō Bunin] (in Japanese). Yoshikawa Kōbunkan (吉川弘文館). 1982.
^Kitayama, Shigeo (1973). 日本の歴史4 平安京 [History of Japan IV: Heian-kyō] (in Japanese). Chūkō Bunko (中公文庫). p. 242.
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