Carroll
The Philosophy of Horror
 Buku Teks
Cook, Roy T., 1972-,author
Paradoxes
Polity, 2013
 Buku Teks
Heart and soul : the therapeutic face of philosophy
edited by Chris Mace
Routledge, 1999
 Buku Teks
Eisenstadt, Shmuel Noah
Paradoxes of democracy
The Woodrow Lilson Center Press, 1999
 Buku Teks
Noel, Emile
Working together / Emile Noel
The Institute of the European Community, 1979
 Buku Teks