Gaya APA
Personality Theories. (2005).
Yogyakarta:
Prisma Sophie.
Gaya Chicago
Personality Theories.
.
Yogyakarta:
Prisma Sophie,
2005.
Buku.
Gaya MLA
Personality Theories.
.
Yogyakarta:
Prisma Sophie,
2005.
Buku.
Gaya Turabian
Personality Theories.
Yogyakarta:
Prisma Sophie,
2005.
Buku.