Carr, E.H. (Edward Hallet), author
Macmillan, 1946
Buku Teks
Dallin, David J., author
Yale University Press, 1956
Buku Teks
Valkenier, Elizabeth Kridl, author
Frederick A. Praeger, 1983
Buku Teks
editor, Paul Boyer
Ivan R. Dee, 1900
Buku Referensi
Fuchs, Stephen
Asia Publishing House, 1963
Buku Teks