Sulzer-Azaroff, Beth
Holt, Rinehart, and Winston, 1991
Buku Teks
Sarafino, Edward P., 1940-, author
Wiley, 2012
Buku Teks
Mehrabian, Albert, author
Human Science Press, 1978
Buku Teks
Martin, Gary, author
Prentice-Hall, 1988
Buku Teks
Martin, Garry, 1941-, author
Prentice-Hall, 2003
Buku Teks