Forster, John
Cambridge University Press, 2011
Buku Teks
Johnson, Edgar
Simon and Schuster, 1952
Buku Teks
Bradford, Barbara Taylor
Grafton, 1990
Buku Teks
Hamilton, Alexander
New York The Liberal Arts Press 1957
Buku Teks
Neider, Charles
Routledge and Kegan Paul Ltd, 1949
Buku Teks