1. Azwar, S. (1999). Pengantar Psikologi Inteligensi. Yogyakarta: Pustaka Pelajar Offset.
2. Carrol, J. B. (1993). Human Cognitive Abilities: A Survey of factor Analysis Studies. Australia: Cambridge University Press.
3. Cattell, R. B. (1941). Some theoretical issues in adult intelligence testing. Psychological Bulletin, 38(592), 10.
4. Cattell, R. B. (1971). Abilities: their structure, growth and action. Oxford: Houghton Mifflin.
5. Gregory, R. J. (2013). Tes Psikologi: Sejarah, Prinsip dan Aplikasi. Edisi 6. Terj. Jakarta: Penerbit Erlangga.