Why national IQs do not support evolutionary theories of intelligence, Jelte M. Wicherts, Denny Borsboom and Conor V. Dolan, Personality and Individual Differences, Volume 48, Issue 2, January 2010, pp. 91–96, https://dx.doi.org/10.1016/j.paid.2009.05.028
Kamin, Leon (1974). The Science and Politics of IQ. Vol. 41. Lawrence Erlbaum Publishers. pp. 387–425. ISBN0-470-45574-8. PMID11630476. {{cite book}}: |journal= ignored (help)