Artikel Jurnal
edited by Nancy Chng
Select Books, 1977
Buku Teks
edited by Nikolas Coupland
Cambridge University Press, 2016
Buku Teks
Edited by Robert J. Stainton
Blackwell Publishing, 2006
Buku Teks
McBride, Nicholas J., author
Palgrave, 2014
Buku Teks