Homans, George Caspar, 1910-1989, author
Routledge & Kegan Paul, 1959
Buku Teks
Homans, George Caspar, 1910-1989, author
Harcourt, Brace, 1950
Buku Teks
Berelson, Bernard, author
Harcourt Brece & World, 1964
Buku Teks
Baron, Robert A., author
Heights Allyn and Bacon , 1991
Buku Teks
Lewin, Kurt, author
Harper & Brothers, 1948
Buku Teks