1. Abe R. K. (2007). “Secondary Treatment Unneeded Wasteful.” The Honolulu Advertiser Commentary April 12 (www.hwea.org/Advertiser_editorial_4-12-2007.pdf).
2. Archibold R. C. (2007). “From Sewage Added Water for Drinking.” The New York Times A1 A29 November 27.