Further reading

[|Verburgh, Kris] (2007), Fantastisch, over het universum in ons hoofd, Uitg. Houtekiet, ISBN 9052409846

Wilson, Edward O. (1975), Sociobiology: The new synthesis, ISBN 0-674-81621-8

Tolle, Eckhart (2005), A New Earth: Awakening to your life's purpoes, London: Penguin Books, ISBN 0-141-01782-1

Apter, M.J. & K.C.P. Smith (1985), "Experiencing personal relationships", in Apter, M.J. & D.F.S. Murgatroyd, Reversal Theory: applications and development, Cardiff: University College Cardiff Press

Girard, René (1986), De Zondebok, Kampen: Uitgeverij Kok Agora, ISBN 9024275342

Dennen, J. van der & V. Falger, eds. (1990), Sociobiology and Conflict, London: Chapman and Hall, ISBN 0412337703

Kirton, Michael J., ed. (1989), Adaptors and Innovators: Styles of creativity and problem-solving, London: Routledge, ISBN 0415024242