Ni Ken Ritchie, author
Universitas Indonesia, 2015
UI - Disertasi (Membership)
Medical Journal of Indonesia, 13 (1) January March 2004: 17-23, 2003
Artikel Jurnal
WHO, 1998
Buku Teks
World Health Organization
World Health Organization, 1993
Buku Teks
Artikel Jurnal