1. Becker, G. (1978). The mad genius controversy: A study in the sociology of deviance. Beverly Hills, CA: Sage.
2. Boring, E. G. (1950). A history of experimental psychology. New York: Appleton-Century-Crofts.
3. Cahan, J. (1911). Zur kritik des geniebegriffs [Toward a criticism of the concept of genius]. Bern, Switzerland: Scheitlin.
4. Coladarci, A. P. (1968). Educational psychology. In D. L. Sills (Ed.), International encyclopedia of the social sciences (Vol. 4, pp. 533-539). New York: Macmillan.
5. d'Alembert, J. L. (1967). Oeuvres completes de d'Alembert [Complete works of d'Alembert]. Geneva, Switzerland: Slatkine.