[1] I. Biodiversity and the 2030 Agenda for Sustainable Development, Technical Note, 1-27.
https://www.cbd.int/development/doc/biodiversity-2030-agenda-technical-note-en.pdf
[2] J. N. Mordeson and S. Mathew, (2023). Similarity of country rankings on sustainability performance, Transactions on Fuzzy Sets and Systems, 2(1) Online ISSN: 2821-0131.
[3] J. N. Mordeson and S. Mathew,(2021). Mathematics of Uncertainty for Coping with World Challenges: Climate Change, World Hunger, Modern Slavery, Coronavirus, Human Trafficking, Studies in Systems, Decision and Control 353, Springer.
[4] Protected Areas Representativeness Index, Species Habitat Index, Species Protection Index, and Biodiversiy Index.
[5] Sustainable Development Report 2019 Transformations to Achieve the Sustainable Developmental Goals, SDG Index and Dashboards.