Friedenberg, Jay, author
Sage, 2006
Buku Teks
Cambridge University Press, 2009
eBooks
Mandik, Pete, author
Wiley-Blackwell, 2014
Buku Teks
Goldstein, E. Bruce, author
Thomson Wadsworth, 2008
Buku Teks
Lee, David, author
Oxford University Press, 2004
Buku Teks