Adams, Paul C., author
Blackwell Publishing, 2009
Buku Teks
Paul C. Adams, Julie Cupples, Kevin Glynn, André Jansson and Shaun Moores, authors
Routledge, 2017
Buku Teks
Fuchs, Christian, author
Sage Publications, 2014
eBooks
Rayner, Philip, 1947-, author
Routledge , 2001
Buku Teks
Wilson, Stan Le Roy, author
McGraw-Hill, 1995
Buku Teks