1. Resolution Adopted by the General Assembly on 27 July 2012,2012
2. Sanitation 2018
www.who.int/topics/sanitation/en/
3. Sanitation 2019
https://www.who.int/en/news-room/fact-sheets/detail/sanitation
4. Goal 6: Ensure Availability and Sustainable Management of Water and Sanitation for All: Department of Economic and Social Affairs
https://sdgs.un.org/goals/goal6
5. Drinking Water 2019
https://data.unicef.org/topic/water-and-sanitation/drinking-water/