Gavin, Angus
Academy Editions, 1996
Buku Teks
Charles T. Roman, editor
Island Press, 2012
eBooks
Moreira, Francisco, editor
[, Springer], 2012
eBooks
Perrin, Towers
Irwin , 1997
Buku Referensi
Eka Musridharta
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2014
UI - Tesis Membership