Christie, David
UNSW Press, 1997
Buku Teks
Setia Pradipta, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2013
UI - Skripsi (Membership)
Friedman, Gary D., author
Yayasan Essentia Medica, 1986
Buku Teks
Armstrong, Bruce K., author
Oxford University Press, 1994
Buku Referensi
edited by Michael B. Gregg
Oxford University Press, 2002
Buku Teks