Cambridge University Press, 2003
Buku Teks
Hirschberg, Stuart
Prentice-Hall, 1997
Buku Teks
edited by Christoph Dörrenbächer; Mike Geppert
Emerald Publishing, 2017
Buku Teks
edited by Christoph Dorrenbacher, Mike Geppert
Emerald, 2017
eBooks
Paolo Janni
The council for research in values and philoaophy, 2001
Buku Teks