Seidenberg, Bernard
The Free Press, 1976
Buku Teks
Vaughan, Graham M., author
Pearson Prentice Hall, 2005
Buku Teks
edited by Miles Hewstone, Wolfgang Stroebe, Klaus Jonas
John Wiley & Sons, 2012
Buku Teks
Bonnes, Mirilia, author
Sage, 1995
Buku Teks
Dewey, John, author
Buku Teks