edited by Herbert Herman
Academic Press, 1983
Buku Teks SO
Tausworthe, Robert C.
Prentice-Hall, 1977
Buku Teks SO
edited by Lenore S. Clesceri, Arnold E. Greenberg, Andrew D. Eaton
American Public Health Association, 1998
Buku Referensi
edited by Eugene W. Rice, Rodger B. Baird, Andrew D. Eaton and Lenore S. Clesceri
American Water Works Association, 2012
Buku Teks
Armstrong, John W.
Gramedia Pustaka Utama, 2002
Buku Teks SO