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Mezule L. 2012 Significance of Nonculturable Escherichia Coli in Drinking Water: Experimental and Pilot Studies in Large Drinking Water Systems. LAP Lambert Academic Publishing, p. 180. ISBN: 9783848499731.

Tihomirova K.(2011) NOM Removal from Water and its Influence on the Drinking Water Quality: Natural organic matter removal from water and its influence on the water quality in distribution network. -LAP LAMBERT Academic Publishing. -ISBN: 978-3-8465-2340-7. -172 pages. Book is available on and

Juhna T. Comprehensive Biotechnology, 2nd edition, 2nd Edition Edited By  Murray Moo-Young , Michael Butler, Colin Webb, Antonio Moreira, Bernard Grodzinski, Z F Cui    &  Spiros Agathos. ISBN: 978-0-444-53352-4