อ้างอิง ของ ชนชั้นกลาง

  1. ↑ http://money.cnn.com/infographic/economy/what-is-middle-class-anyway/index.html
  2. ↑ Baizidi, Rahim (2019-07-17). "Paradoxical class: paradox of interest and political conservatism in middle class". Asian Journal of Political Science. 0: 1–14. doi:10.1080/02185377.2019.1642772. ISSN 0218-5377.
  3. ↑ Parker, John (12 February 2009). "Special report: Burgeoning bourgeoisie". The Economist (published 13 February 2009). สืบค้นเมื่อ 13 December 2009.