1. Department of Economic and Social Affairs:. THE 17 GOALS - Sustainable Development. Sustainable Development (n.d.). https://sdgs.un.org/goals
2. The United Nations: United Nations millennium development goals. The United Nations (n.d.). https://www.un.org/millenniumgoals/
3. Australia’s National Science Agency: Technical annex for Global Material Flows Database - 2021 edition. International Resource Panel. Available online: https://resourcepanel.org/sites/default/files/technical_annex_for_global_material_flows_database_-_vers_30_aug22.pdf. Last accessed: 30 Aug 2023
4. United Nations Environment Programme: Global Material Flows Database. Resource Panel. International Resource Panel. Available online: https://www.resourcepanel.org/global-material-flows-database. Last accessed: 30 Aug 2023
5. Giljum, S., Bruckner, M., Martinez, A.: Material footprint assessment in a global input-output framework. J. Ind. Ecol. 19(5), 792–804 (2014). https://doi.org/10.1111/jiec.12214. Dec.