1Party competition between unequals : strategies and electoral fortunes in Western Europe. Bonnie M. Meguid. New York : Cambridge University Press, 2008. p. 102.
2Party images in the American electorate. Mark D. Brewer. New York : Routledge, 2009. p. 33.
3Party influence in Congress . Steven S. Smith. New York : Cambridge University Press, 2007. p. 52.
4Party policy in modem democracies. Kenneth Benoit and Michael Laver. New York : Routledge, 2006. p. 63.
5Party politics in America . Marjorie Randon Hershey . New York : Longman, 2009. pp. 121,83.
6Party politics in new democracies, edited by Paul Webb and Stephen White. Oxford ; New York : Oxford University Press, 2007. pp. 105,117.
