1. The Sustainable Development Agenda—United Nations Sustainable Development 2020https://www.un.org/sustainabledevelopment/development-agenda/
2. The Sustainable Development Goals Report 2020https://unstats.un.org/sdgs/report/2020/
3. Indicators of Sustainable Development—Guidelines and Methodologies 2007https://www.un.org/esa/sustdev/natlinfo/indicators/guidelines.pdf
4. The Global Standards for Sustainability Reporting 2021https://www.globalreporting.org/standards/
5. Managing Mining for Sustainable Development. A Sourcebook 2018https://www.undp.org/publications/managing-mining-sustainable-development