Young, Kimball, author
Trench, Trubner, 1946
Buku Referensi
edited by Michael A. Hogg and Joel Cooper
Sage, 2003
Buku Teks
by Gordon W. Allport ... [et al.]; edited by Gardner Lindzey
Addison-Wesley, 1956
Buku Teks
edited by Kristine L. Fitch, Robert E. Sanders
Lawrence Erlbaum Associates, 2005
Buku Teks
edited by Harold Leitenberg
Plenum Press, 1990
Buku Referensi