Shaffer, David R. (David Reed), 1946-, author
Wadsworth/Thomson Learning, 2002
Buku Teks
Davies, Douglas, 1942-, author
The Guilford Press, 2004
Buku Teks
Fathia Afrazayne Safitri, author
Fakultas Psikologi Universitas Indonesia, 2020
UI - Skripsi (Membership)
editor-in-chief Richard M. Lenrner
New Jersey Wiley, 2015
Buku Referensi
Dhifani Lutya Azzahra, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2020
UI - Skripsi (Membership)