Asfahl, C. Ray
Pearson/Prentice Hall, 2004
Buku Teks
Anton, Thomas J.
McGraw-Hill, 1979
Buku Teks
DeReamer, Russell
John Wiley & Sons, 1980
Buku Teks
Goetsch, David L.
Pearson-Prentice Hall, 2005
Buku Teks
Agita Diora Fitri
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2013
UI - Tesis Membership