Edward J. Hughes, editor
Cambridge University Press, 2007
Buku Teks
Bendixen, Alfred, author
Wiley-Blackwell, 2010
Buku Teks
edited by Andrew Rippin
Blackwell, 2006
Buku Teks
Ganic, Ejup N., author
McGraw-Hill, 2003
Buku Teks
edited by Catherine Spooner, Emma McEvoy
Routledge, 2007
Buku Teks