Austin, Dennis
Routledge , 1922
Buku Teks
Davie, Grace, author
Wiley Blackwell, 2015
Buku Teks
Croarken, Mary, author
Clarendon Press, 1990
Buku Teks
edited by Maurice Mullard
Routledge, 1995
Buku Teks
Ben Jackson, Robert Saunders, editors
Cambridge University Press, 2012
Buku Teks