Flood, Robert L.
John Wiley & Sons, 1991
Buku Teks
Yasminia, author
Fakultas Psikologi Universitas Indonesia, 2006
UI - Tesis (Membership)
Robertson, S. Ian, author
Psychology Press, 2001
Buku Teks
Anisa Retno Febriyanti, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2020
UI - Tesis (Membership)
Eide, Arvid R., author
McGraw-Hill, 2002
Buku Teks