Mackerras, Colin
Cambridge University Press, 1991
Buku Teks SO
edited by Brian Hook, Denis Twitchett
Cambridge University Press, 1991
Buku Referensi
New York Cambridge University Press 1991
Buku Referensi
edited by Keith J. Holyoak, Robert G. Morrison
Cambridge University Press, 2005
Buku Referensi
Bakich, Michael E.
Cambridge University Press, 1999
Buku Referensi