1. Adorno, Theodor (1990) Negative Dialectics; London: Anievas Alexander (2010) On Habermas, Marx and the critical theory tradition Theoretical mastery or drift?; Moore Cerwyn, Ferrands Chris (eds.); London: Routledge.
2. Apel, Karl-Otto (1980) Towards a Transformation of Philosophy; London: Routledge.
3. Baynes, Kenneth (2016) Habermas; London: Routledge.
4. Benhabib, Seyla (1987) Critique, Norm, and Utopian: A Study of the Foundations of Critical Theory; New York: Columbia University Press.
5. Bhattacharjee, Gobinda (2021) Habermasian Discourse Theory of Morality: A Critique; International Journal of Advanced Research, Vol. 9, No. 10, pp. 850–856.