Lyons, John, author
Cambridge University Press, 1968
Buku Teks
Hughes, John P., author
Random House, 1966
Buku Teks
Gleason, Henry Allan
Holt, Rinehard, 1963
Buku Teks
Victoria A. Fromkin [and others]
Blackwell, 2001
Buku Teks
Tony McEnery, Andrew Wilson, editor
Edinburgh University Press , 2001
Buku Teks