1. Solso RL, MacLin MK, H MO. Cognitive psychology. Pearson Education New Zealand. 2005.
2. Williams JMG. Cognitive Psychology and Emotional Disorders. 1991.
3. Bruning RH, Schraw GJ, Ronning RR. Cognitive psychology and instruction. ERIC. 1999.
4. Mainstream science on intelligence: An editorial with 52 signatories, history, and bibliography;LS Gottfredson;Intelligence,1997
5. Education NCOMI. Glossary of important assessment and measurement terms. 2016.