Pervin, Lawrence A.
Personality theori and research
John Wiley & Sons, Inc, 1997
 Buku Teks SO
Kaplan, Abraham
The Conduct of inquiry : methodology for behavioral sciennce
Chandler, 1964
 Buku Teks SO
Cervone, Daniel
Kepribadian: teori dan penelitian 2 = Personality: theory and research
Salemba Humanika, 2012
 Buku Teks SO
Al-Uqshari, Yusuf
Kenali diri raih prestasi
Gema Insani, 2006
 Buku Teks SO
Wechsler, David
Range of human capacities
Williams & Wilkins, 1952
 Buku Teks SO