Etzioni, Amitai, author
Prentice-Hall, 1964
Buku Teks
Reitz, H. Joseph
richard D. Irwin, 1977
Buku Teks
Dunkerly, David
Routledge, 1972
Buku Teks
Dessler, Gary, 1942-, author
Prentice-Hall, 1976
Buku Teks
Pettinger, Richard, author
Capstone Publishing, 2002
Buku Teks