Arnheim, Rudolf
University of California Press, 1957
Buku Referensi
Bruce, Vicki
Psychology Press, 1996
Buku Teks
Brolin, Brent C.
W.W. Norton, 2002
Buku Teks
edited by Andrew Blake and Tom Troscianko
Wiley, 1990
Buku Teks
edited by Richard L. Cherry, Robert J. Conley and Bernard A. Hirsch
Houghton Mifflin, 1974
Buku Teks