Koester, Almut, author
Routledge, 2006
Buku Teks
Dalby, Andrew
A. Lane, 2002
Buku Teks
Woodger, J.H.
Cambridge University Press, 1952
Buku Teks
Crystal, David, 1941-, author
Cambridge University Press, 2004
Buku Teks
Fought, Carmen, author
Cambridge University Press, 2006
Buku Teks