Luhr, William
Putnam, 1977
Buku Teks
edited by Susan L. Feagin and Patrick Mayhard
Oxford University Press, 1997
Buku Teks
Kiernan, Brian
Oxford University Press, 1974
Buku Teks
Berenson, Bernard, 1865-1959
Doubleday Anchor Books, 1953
Buku Teks
edited by Berys Gaut, Dominic McIver Lopes
Routledge, 2006
Buku Referensi