1. Heywood, J. (2005). Engineering Education. Research and Development in Curriculum and Instruction, pages 55–57, Hoboken, NJ, IEEE Press/Wiley. 2, 12
2. Macmurray, J. (1961). Persons in Relations. London, Faber and Faber. 2
3. Loc.cit. [1, page 4–5]. 2
4. Astin A. W. (1997). What Matters most in College. Four Critical Years Revisited. San Francisco, CA, Jossey-Bass. 2
5. Pascarella, E. T. and Terenzini, P. T. (2005). How College Affects Students Vol 2. A Third Decade of Research. San Francisco, CA, Jossey-Bass. 2, 13