1. APHA-AWWA-WEF. 1995: Standard methods for the examination of water and wastewater. 19th ed. American Public Health Association, Inc., Washington, D. C.
2. ASTM D 4012-81. Standard test method for adenosine triphospate (ATP) content of microorganisms in water.
3. Coallier et al. 1994: The optimization and application of two direct viable count methods for bacteria in distributed drinking water. Can. J. Microbiology. 40:830–836.
4. Crombrugge J and G Waes. 1991: ATP method. In: Methods for assessing the bacteriological quality of raw milk from the farm (Ed. W Heeschen) P.53–60. International Dairy Federation, Brussels, Belgium.
5. Deininger RA and J Lee. 2000: Rapid detection of bacteria in drinking water. First World Water Congress of the International Water Association (IWA). Paris, France.