1. Baynes, Kenneth (1998) “Habermas Jürgen” In The Routledge Encyclopedia of Philosophy; (Craig Edward ed.), London: Routledge.
2. Bohman, James (2000) “Distorted Communication: Formal Pragmatics as a Critical Theory” In Perspectives on Habermas; Hahn Edwin Lewis (ed.), Chicago: Open Court.
3. De Vera, A. Dennis (2014) Habermas, Discourse Ethics, and Normative Validity; Kritike; Vol. 8, No. 2, pp. 139–166.
4. Dunne, Luke (2022) Six Points on Jürgen Habermas Revolutionary Discourse Theory, The collector. com, accessed 16.06.2023 https://www.thecollector.com/jurgen-habermas-discourse-ethics/.
5. Edgar, Andrew (2006) Habermas: The Kew Concepts; London: Routledge.