Thomson, Ian, author
John Murray, 1957, 1960
Buku Teks
Hsu, Immanuel C.Y.
Oxford University Press, 1970
Buku Teks
Hammond, John Lawrence, 1872-1949, author
Methuen, 1952
Buku Teks
Dallin, David J.
Yale University Press, 1949
Buku Teks
Duus, Peter
Houghton Mifflin, 1976
Buku Teks