Standard methods for the examination of water and wastewater : 18th edition
American Public Health Association; edited by Arnold E. Greenberg, Lenore S. Clescert and Andrew D. Eaton
American Public Health Association, 1992
 Buku Referensi
Standard methods for the examination of water and wastewater
edited by Lenore S. Clesceri, Arnold E. Greenberg, Andrew D. Eaton
American Public Health Association, 1998
 Buku Referensi
Standard methods for the examination of water and wastewater
edited by Eugene W. Rice, Rodger B. Baird, Andrew D. Eaton and Lenore S. Clesceri
American Water Works Association, 2012
 Buku Teks
Standard method for the examination of dairy products : microbiological and chemical methods formulated
The Assco, 1972
 Buku Teks
Dooley, David
Social research methods, 4th edition
Prentice-Hall, 2001
 Buku Teks