American Water Works Association, Raymond D. Letterman, technical editor
McGraw-Hill, 1999
Buku Referensi
World Health Organization, 1985
Buku Teks
Cantor, Abigail F., author
CRC Press, Taylor & Francis Group, 2018
Buku Teks
Gray, N. F.
Wiley, 1994
Buku Teks
Chin, David A.,
Wiley-Blackwell, 2013
Buku Teks