edited by Gavin Brown, Kath Browne
Routledge, 2016
Buku Teks
Barcus, Holly R., author
Routledge, 2018
Buku Teks
edited by John Mohan
Oxford University Press, 1999
Buku Teks
Holloway, Lewis, author
Prentice-Hall, 2001
Buku Teks
edited by Sarah A. Radcliffe
Routledge , 2006
Buku Teks