Carnes, W. Stansbury
The atlas of economic indicators : a visual guide to market forces and the Federal Reserve
HarperBusiness, 1992
Buku Referensi
Perthel, Dirk
Laws of development indicators of development and their effects on economic growth
Amsterdam University, 1981
Buku Teks
Doody, Francis S.
Introduction to the use of the economic indicators Francis S. Doody
New York, N.Y. Random c.1965,
Buku Teks
The use of socio-economic indicators in development planning
Unesco Press, 1979
Buku Teks
Carrington, Richard
A guide to earth history/ Richard Carrington
Penguin Books, 1958
Buku Teks