1. Nelson JR (1997) Practical Counselling and Helping Skills. (4th edn), Cassel, UK.
2. McLeod J (1998) An Introduction to Counselling. (2nd edn), Open University Press, UK.
3. Wisdom: its nature, origins and development;Sternberg;Cambridge University Press India,1990
4. Singer J (1995) Boundaries of the Soul: The Practice of Jung's Psychology. Prism Press, UK.
5. Buzan T (1976) Use both sides of your Brain. EP Dutton, USA. pp. 1-160.