Eriksen, Thomas Hylland, author
Pluto Press, 2001
Buku Teks
Snooks, Graeme Donald
Routledge, 1998
Buku Teks
Toynbee, Arnold J., author
Oxford University Press, 1955
Buku Teks
Buku Teks
Sansom, George Bailey, Sir, 1883-1965, author
Stanford University Press, 1958
Buku Teks