Knapp, Mark L., author
Allyn and Bacon, 1996
Buku Teks
Berscheid, Ellen, author
Prentice-Hall, 2005
Buku Teks
Koprowska, Juliet, author
Learning Matters, 2008
Buku Teks
Floyd, Kory, author
Mc Graw Hill, 2012
Buku Teks
Hartley, Peter, 1946-, author
Roudledge, 1993
Buku Teks