Lucas, Henry S., author
Harper and Row, 1960
Buku Teks
R. Po-Chia Hsia
BlackWell Publishing, 2006
Buku Teks
Munchen : Deutscher Taschenbuch Verlag GmbH, 1973
Buku Teks
Holborn, Hajo, 1902-1969, author
Alfred A. Knopf, 1967
Buku Teks
Elton, G. R. (Geoffrey Rudolph), author
Harper & Row, 1963
Buku Teks