6William Buxton (2003).“From Radio Research to Communications Intelligence: Rockefeller Philanthropy, Communications Specialists, and the American Policy Community.”In Sandra Braman (ed.). Communication Researchers and Policy-Making. Cambridge, MA: The MIT Press.
7Harold D. Lasswell (1937). "Propaganda and the Channels of Communication." In Ehner Ellis (ec[). Education against Propaganda. Cambridge, MA: National Council for the Social Science Studies. pp.14-26.
8Brett Gary (1999). The Nervous Liberals: Propaganda Anxiety from World War to the Cold War. New York: Columbia University Press, p. 101.
9Wilbur Schramm (1997). The Beginnings of Communication Study in America: A Personal Memoir. Thousand Oaks: Sage Publications, p.28.
10Rodney Muth eta|. (1989).Harold D. Lasswell: An Annotated Bibliography. New Haven, Connecticut: New Haven Press, pp.79-80.
