https://www.wto.org/english/res_e/reser_e/ersd201704_e.pdf
https://iea.blob.core.windows.net/assets/6bd6c46d-21d7-4ae7-af9f-25dc9f8e7f3b/GasMarketReport,Q1-2025.pdf
https://www.fraserinstitute.org/sites/default/files/populism-majority-rule-and-economic-freedom-ch3.pdf
https://www.wto.org/english/tratop_e/dispu_e/567r_e.pdf16 Jun, 2020