Chulalongkorn University , 1989
Buku Teks
Badan Pusat Statistik, 2008
Buku Referensi
Russel Sage Foundation,
Buku Teks
Unun Khamida Qodarina, author
Universitas Indonesia, 2014
UI - Skripsi (Membership)
World Health Organization
World Health Organization, 1997
Buku Teks