Kotler, Philip1982. Marketing for Nonprofit Organizations. Englewood Cliffs, New Jersey: Prentice-Hall, Inc., Second Edition.
2.
Lovelock, Christopher H. and Weinberg, Charles B.1984. Marketing For Public and Nonprofit Managers. New York: John Wiley & Sons.
3.
Lucy, William H. and Mlandenka. Kenneth R.1977. Equity and Urban Service Distribution. Washington, D.C.: Department of Housing and Urban Development, National Technical Information Service.