Putri Permatasari, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2012
UI - Skripsi (Open)
Lockwood, Derek, author
Gramedia Pustaka Utama, 1994
Buku Teks
Pokras, Sandy, author
Kogan Page, 1990
Buku Teks
Rae, Leslie, author
Bhuana Ilmu Populer, 2005
Buku Teks
Chen, Chris, author
McGraw-HIll , 2005
Buku Teks