WHO, 1996
Buku Teks
World Health Organization, 1996
Buku Teks
Shackelford, James F., author
London : CRC Press, 1995,
Buku Referensi
Eko Yuli Sulistiono, author
Fakultas Teknik Universitas Indonesia, 2002
UI - Skripsi (Membership)
Ahmad Izzah Fadhilah, author
Fakultas Teknik Universitas Indonesia, 2022
UI - Skripsi (Membership)