Thompson, E.A.
A history of Attila and the Huns / E.A. Thompson
Clarendom, 1948
 Buku Teks
Suzuki, Daisetz Teitaro, 1870-1966
A brief history of early chinese philosophy
Probsthain, 1914
 Buku Teks
Alfred J. Rieber
The struggle for the Eurasian borderlands: from the rise of early modern empires to the end of the First World War
Cambridge University Press, 2014
 eBooks
China's early empires : a re-appraisal
edited by Michael Nylan, Michael Loewe
Cambridge University Press, 2010
 Buku Teks
Dance, E.H.
Britain in World history; Part I (to 1603)
Longman, 1937
 Buku Teks