Nakamura, Hajime
Kokusai Bunka Shinkokai, 1969
Buku Teks
Denis Twitchett
Cambridge University Press, 2006
Buku Teks
edited by John Paynter, Tim Howell, Rchard Orton and Peter Seymour
Routledge, 1992
Buku Referensi
edited by Joachim Herrmann, Joachim Herrmann and Erik Zurcher
Routledge, 1996
Buku Referensi
Durant, Will
Simon and Schuster, 1953
Buku Teks