Tapsell, R.F.
Monarchs, rulers, dynasties and kingdoms of the world
Thames and Hudson, 1987
 Buku Referensi
The archaeology of communities : a new world perspective
edited by Marcello A. Canuto and Jason Yaeger
Routledge, 2000
 Buku Teks
Webster's New World dictionary of the American language
David B. Guralnik, editor in chief
William Collins Publishers, 1976
 Buku Referensi
Webster's new world dictionary of the American language
David B. Guralnik, editor in chief
Prentice-Hall, 1986
 Buku Referensi
Gras, Gilbert Le
The new world: the re-emerging market in South America
reuters, 2002
 Buku Teks