อ้างอิง ของ การเมืองฝ่ายซ้าย–ฝ่ายขวา

  1. Knapp & Wright, p. 10
  2. Adam Garfinkle, Telltale Hearts: The Origins and Impact of the Vietnam Antiwar Movement (1997). Palgrave Macmillan: p. 303.
  3. "Left (adjective)" and "Left (noun)" (2011), Merriam-Webster Dictionary.
  4. Roger Broad, Labour's European Dilemmas: From Bevin to Blair (2001). Palgrave Macmillan: p. xxvi.
  5. JoAnne C. Reuss, American Folk Music and Left-Wing Politics, The Scarecrow Press, 2000, ISBN 978-0-8108-3684-6
  6. Van Gosse, The Movements of the New Left, 1950 – 1975: A Brief History with Documents, Palgrave Macmillan, 2005, ISBN 978-1-4039-6804-3
  7. Berman, Sheri. "Understanding Social Democracy". http://www8.georgetown.edu/centers/cdacs//bermanpaper.pdf. Retrieved on 2007-08-11.
  8. Brooks, Frank H. (1994). The Individualist Anarchists: An Anthology of Liberty (1881–1908). Transaction Publishers. p. xi. "Usually considered to be an extreme left-wing ideology, anarchism has always included a significant strain of radical individualism...
  9. The Concise Columbia Encyclopedia, Columbia University Press, ISBN 0-231-05678-8