1. Role specialization or role switching: Dutch MPs between electorate and executive;Andeweg,1997
2. Letter to the Sheriffs of Bristol;Burke,1777
3. The Formation of National Electorates and Party Systems in Europe;Caramani,2004
4. Central Bureau of Statistics/Center for Statistical Information, 2002. The Arab Population in Israel. State of Israel Prime Minister's Office: http://www.cbs.gov.il/statistical/arabju.pdf.
5. Principles of Electoral Reform;Dummett,1997