Bernard, John D.
Cambridge University Press, 1989
Buku Teks
Coleridge, Hazlitt
Clarendon Press, 1946
Buku Teks
Roberts, Denys Kilham
Penguin Books , 1945
Buku Teks
Palgrave, Francis T.
Macmillan, 1922
Buku Teks
Nims, John Frederick
Harper & Row Pub., 1981
Buku Teks