edited by Benjamin Schneider
Lawrence erlbaum associates, 2004
Buku Teks
March, James G., author
Wiley, 1950
Buku Teks
Greenberg, Jerald, author
Pearson, Prentice Hall, 2008
Buku Teks
edited by James L. Gibson
Tex Business Publications , 1982
Buku Teks
Etzioni, Amitai, author
Prentice-Hall, 1964
Buku Teks