Tolong jelaskan mengenai Bacaan lanjutan dari Politikus

Aberbach, Joel D., Robert D. Putnam, and Bert A. Rockman, eds., Bureaucrats and politicians in western democracies (Harvard University Press, 1981)

Heywood, Paul M. ed. Routledge Handbook of Political Corruption (2014)

Welch, Susan, John Gruhl, John Comer, and Susan M. Rigdon. Understanding American Government. 8th ed. Belmont, USA: Thompson Wadsworth, 2006

"Merriam Webster Online Dictionary" Definition of politician  5 June 2006