Bonner, Hubert
The Ronald Press, 1959
Buku Teks
Alfred A. Knopf, 1951
Buku Teks
Baron, Robert S., author
Open University Press, 2003
Buku Teks
edited by Muzafer Sherif and M.O. Wilson
Harper & Brothers, 1953
Buku Teks
Bormann, Ernest G., author
Burgess Publishing, 1972
Buku Teks