Jacoby, Tamar, author
The Free Press , 1998
Buku Teks
Arpaio, Joe, 1932- , author
American Management Association, 2008
eBooks
Hardin, Charles M., author
Free Press, 1952
Buku Teks
Rogers, William D., author
Random House, 1967
Buku Teks
Albright, Madeleine, author
Harper Perenial, 2008
Buku Teks