1. Bonadonna, L., Cataldo, C., & Semproni, M. (2007). Comparison of methods and confirmation tests for the recovery Escherichia coli in water. Desalination, 213, 18–23.
2. Chandran, A., & Hatha, A. A. M. (2003). Survival of Escherichia coli in a tropical estuary. The South Pacific Journal of Natural Science, 21, 41–46.
3. European Union (2006). Directive 2006/7/EC of the European Parliament and of the Council of 15 February 2006 concerning the management of bathing water quality and repealing Directive 76/160/EEC. Official Journal of the European Union, L 64, 37–51.
4. European Microbiology Expert Group (EMEG) (2016). EMEG outline paper, European microbiology bathing water expert sub-group, 30th September 2016.
https://circabc.europa.eu/sd/a/9710f5b5-c1fa-47a0-962c-5e2150677f3e/EMEG%20BW%20E%20%20coli%20Outline%20Paper_30-09-2016.pdf
. Accessed 18 January 2019.
5. ISO 9308-1. (2000). Water quality – detection and enumeration of Escherichia coli and coliform bacteria – Part 1: Membrane filtration method. International Organization for Standardization. Geneva.