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2. Barber, James David. 1965. The lawmakers: recruitment and adoptation to legislative life. New Haven: Yale University Press.
3. Blondel, Jean. 1963. Voters, parties, leaders. London: Penguin Books.
4. Blondel, Jean. 1969. An introduction to comparative government. London: Weidenfeld and Praeger.
5. Blondel, Jean. 1973. Comparative legislatures. Englewood Cliffs: Prentice Hall.