Hyde, Richard, author
E & FN Spon, 2000
Buku Teks
Djasmidar A.T., author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2002
UI - Tesis (Membership)
Asia, Yogyakarta, Indonesia, 1974
Buku Teks
Duncan, Ross, author
Melbourne University Press, 1967
Buku Teks
Massachusetts: Rockport Publishers,, 1997
Buku Teks