1. Party and Society: The Anglo-American Democracies;Alford,1963
2. American National Election Study,1960
3. Ang, A. U-J., Petrocik, J.R., Unpublished Results. “Religion, religiosity, and the moral divide in Canadian politics.” Paper presented at the Annual Conference of the Midwest Political Science Association, Chicago.
4. “Dead men walking? Party identification in Germany, 1977–2002.”;Arzheimer;Electoral Studies,2006
5. “Left-right position matters, but does social class? Causal models of the 1992 British general election.”;Bartle;British Journal of Political Science,1998