Fields, Richard, author
McGraw-Hill1, 2013
Buku Teks
Jung, John, author
Sage Publications, 2001
Buku Teks
Frida Zuliaty, author
Universitas Indonesia, 2005
UI - Tesis (Membership)
A. Kadarmanta, author
Program Pascasarjana Universitas Indonesia, 2011
UI - Tesis (Open)
Isrizal, author
Fakultas Psikologi Universitas Indonesia, 2002
UI - Tesis (Membership)