edited by David A. Pipitone
John Wiley & Sons, 1991
Buku Teks SO
Anisa Kusuma Dewi
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2016
UI - Skripsi Membership
World Health Organization, 1983
Buku Teks
Bender, Herbert F.
Wiley-VCH, 2007
Buku Teks
Lewis, Richard J.
Wiley-Interscience, 2002
Buku Referensi