Sugawara no Michizane, a Heian literatus and statesman 論文集所収 Robert Borgen ·2015-07-31 ·『Cambridge University Press eBooks』 pp. 102-109 doi:10.1017/cho9781139245869.010
Heian Japan, Centers and Peripheries 図書 Mikael S. Adolphson・Edward Kamens・Stacie Matsumoto ·2017-12-18 ·『University of Hawaii Press eBooks』 doi:10.1515/9780824862817