edited by Allen M. Omoto
Lawrence Erlbaum Associates, 2005
Buku Teks
Lippitt, Ronald
Harcourt,Brace , 1958
Buku Teks
Moore, Wilbert E. (Wilbert Ellis), author
Prentice-Hall, 1963
Buku Teks
edited by Robert A. Nisbet
Blackwell, 1972
Buku Teks
edited with an introduction by Robert A. Nisbet
Harper Torchbooks, 1972
Buku Teks