Cruse, Alan
Oxford University Press, 2004
Buku Teks
Griffths, Patrick
Edinburgh University Press, 2006
Buku Teks
Ullmann, Stephen
Basil Blackwell, 1964
Buku Teks
Williams, Alexander
Cambridge University Press, 2015
eBooks
Levinson, Stephen C.
Cambridge University Press, 1983
Buku Teks