1. Nimmo, Dan. 1970.The Political Persuaders, 173–174. Englewood Cliffs, New Jersey: Prentice‐Hall, Inc.
2. News Content, Geographical Origin and Perceived Media Credibility
3. Atwood, Erwin and Sanders, Keith. April 1973. “Mass Communications and Ticket‐Splitting in the 1972 Election,”. April, Montreal, Canada: International Communication Association.