edited by John R. White and Arthur S. Freeman
American Psychology Associaion, 2005
Buku Teks
Maha Decha Dwi Putri
Fakultas Psikologi Universitas Indonesia, 2012
UI - Tesis Open
Fadhilah Amalia
Fakultas Psikologi Universitas Indonesia, 2017
UI - Tesis Membership
Spence, Susan H.
Chapman & Hall, 1991
Buku Teks
Rasmussen, Paul R.
American Psychological Association, 2005
Buku Teks