2) C.C. Bonwell and J.A. Eison Active learning-creating excitement in the classroom- The George Washington University (1991).
3) Jürgen Habermas, translated by C. Lenhardt and S.W. Nicholsen Moral consciousness and communicative action The MIT Press (1990).
4) Robert L. Selman The growth of interpersonal understanding-developmental and clinical analyses- Academic Press (1980).
5) Robert L. Selman The promotion of social awareness-powerful lessons from the partnership of developmental theory and classroom practice- Russell Sage Foundation (2003).
