Webster, Hutton, author
D.C. Heath, 1947
Buku Teks
Hitti, P.K.
Macmillan, 1951
Buku Teks
Guo, Bonan, author
Wu zhou chuan bo chu ban she, 2009
Buku Teks
Yi Pyong-gun...[et al.]
Seoul dae hakgyo chul pan bu, 2006
Buku Teks
Toynbee, Arnold J., author
Oxford University Press, 1948
Buku Teks