Duke University Press, 1996
Buku Teks
Knight, G. Wilson
Penguin Books, 1949
Buku Teks
Thompson, Rob, author
Thames & Hudson, 2012
Buku Teks
edited by Gladys L. Mitchell-Walthour, Elizabeth Hordge-Freeman
Palgrave Macmillan, 2016
Buku Teks
Kirkpatrick, Graeme, 1963-, author
Polity Press, 2013
Buku Teks