Pytel, Andrew, author
Cengage Learning, 2012
Buku Teks
WHO, 1996
Buku Teks
Fakultas Teknik Universitas Indonesia, 1992
UI - Skripsi (Membership)
World Health Organization, 1996
Buku Teks
Teuku Yuri M. Zagloel, author
Fakultas Teknik Universitas Indonesia, 1993
UI - Laporan Penelitian