Mays, Larry W.
McGraw-Hill, 2000
Buku Referensi
The American Water Works Association, Inc.
McGraw-Hill, 1971
Buku Referensi
edited by Frank N. Kemmer
McGraw-Hill, 2009
Buku Referensi
A Halsted Press Book, 1979
Buku Referensi
Larry W. Mays
McGraw-Hill, 2002.
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