1. Charting our water future - economic frameworks to inform decision-making;Addams,2009
2. Flow Measurement Handbook;Baker,2000
3. Baumer Time vs. Conductivity as a Basis for Clean-in-Place Control Systems | Engineering360, Engineering 360, 2017. Available at: 〈http://insights.globalspec.com/article/4672/time-vs-conductivity-as-a-basis-for-clean-in-place-control-systems〉 (Accessed 20 October 2017).
4. ‘Level and flow measurement in food process control’;Berrie,2001
5. A. Bonastre et al ‘In-line chemical analysis of wastewater: present and future trends', TrAC Trends in Analytical Chemistry, 24(2), 2005, pp. 128–137. 〈https://dx.doi.org/10.1016/j.trac.2004.09.008〉.