[edited by] Ron Kraus, George Stricker, Cedric Speyer
Elsevier , 2010
Buku Teks
Rosenfeld, George W., author
Routledge, Taylor & Francis Group, 2009
Buku Teks
Anindita Citra Setiarini, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Tesis (Membership)
Sommers-Flanagan, John, author
John Wiley & Sons, 2012
Buku Teks
Haney, Hutch, author
Brooks/Cole, 2001
Buku Teks