Henderson, James W., author
South-Western, 2002
Buku Teks
Feldstein, Paul J., author
John Wiley & Sons, 1988
Buku Teks
Drummond, Michael F., author
Oxford Univesity Press, 1980
Buku Teks
Drummond, Michael F., author
Oxford University Press, 1989
Buku Teks
Elisabeth Sri Lestari, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2009
UI - Tesis Open