Twain, Mark, 1835-1910, author
Penguin Books, 1973
Buku Teks
Abecassis, David W.
Butterworth, 1978
Buku Teks
McLoughlin, J., author
Manchester University Press, 1972
Buku Teks
Redmond, Peter W.D., author
Macdonald and Evans, 1965
Buku Teks
Palfreman, David, author
Pitman, 1993
Buku Teks