Merriman, David, author
Quorum Books , 1987
Buku Teks
Sage Publications, 1989
Buku Teks
Smith, Daniel A.
Routledge, 1998
Buku Teks
Rabinowitz, Alan, author
John Wiley & Sons, 1969
Buku Teks
The International City Manager's Association, 1950
Buku Teks