Lawrence Quill: Republicanism. W: Encyclopedia of Democratic Thought. Paul Barry Clarke; Joe Foweraker (ed.). London – New York: Routledge, 2001, s. 754-760.
Kurt A. Raaflaub, Josiah Ober, Robert W. Wallace, Origin of Democracy in Ancient Greece, University of California Press, 2007, ISBN 0-520-24562-8, Google Books link.
Daniele Archibugi; David Held (eds.), Cosmopolitan Democracy. An Agenda for a New World Order, Polity Press, Cambridge, 1995; David Held, Democracy and the Global Order, Polity Press, Cambridge, 1995, Daniele Archibugi, The Global Commonwealth of Citizens. Toward Cosmopolitan Democracy, Princeton University Press, Princeton, 2008.
