1. World Health Organization. Potable Reuse: Guidance for Producing Safe Drinking-Water (WHO, 2017).
2. United Nations. Sustainable Development Goal 6: Synthesis Report 2018 on Water and Sanitation (United Nations, 2018).
3. UNESCO. Leaving No One Behind: The United Nations World Water Development Report 2019 (UNESCO, 2019).
4. US Bureau of Reclamation. Recycled Water Project Implementation Strategies. Technical Memorandum (US Department of the Interior & CH2MHILL, 2004).
5. Hurlimann, A. & Dolnicar, S. Water Res. 44, 287–297 (2010).