edited by Peter Boomgaard, Freek Colombijn, and David Henley
KITLV Press, 1997
Buku Teks
Cottle, Simon
Sage, 2003
Buku Teks SO
Berridge, Virginia
McGraw-Hill, 2011
Buku Teks
Rosen, George
The Johns Hopkins University Press, 1993
Buku Teks
edited by Hilda Kean and Paul Martin
Routledge, 2013
Buku Teks SO