Mooney, Gavin H., author
MacMillan Press , 1980
Buku Teks
Coulmas, Florian, author
Cambridge University Press, 2005
Buku Teks
Ramazanoglu, Caroline, 1939-, author
Sage, 2003
Buku Teks
Sekhar, R.C.
Response Book, 2002
Buku Teks
Polkinghorn, R. Stephen, author
Richard D. Irwin, 1979
Buku Teks