1. Last Oasis: Facing Water Scarcity;Postel,1992
2. Bartlett Familiar Quotations;Bartlett,1968
3. Challenges in implementing the use of reclaimed water;Parkinson,1993
4. The Problem of Defining Water Conservation;Baumann,1980
5. Wastewater reclamation, recycling and reuse: past present and future;Asano;Water Sci. Technol.,1996