https://www.igi-global.com/pdf.aspx?tid=319023&ptid=278239&ctid=4&oa=true&isxn=9781683183105
https://www.brookings.edu/articles/tripling-zambias-copper-production-a-way-out-of-the-debt-crisis/
https://cps.org.uk/wp-content/uploads/2023/06/CPS-The-Unregulated-Regulator-final.pdf
https://digitalcommons.law.scu.edu/cgi/viewcontent.cgi?article=1685&context=chtlj