1. Abdullah, F. B., Iqbal, R., Hyder, S. I., & Jawaid, M. (2020). Energy security indicators for Pakistan: An integrated approach. Renewable and Sustainable Energy Reviews, 133, 110122.
2. Australian Government, Department of Resources, Energy and Tourism (RET). (2011). National Energy Security Assessment of Australia. http://www.ret.gov.au
3. Bassim, M. (2015). Future expectations for energy in the Middle East and North Africa (MENA) region. European Centre for Energy & Resource Security, 47, 5–8.
4. Boersma, T., & Johnson, C. (2018). US energy diplomacy (Columbia University, SIPA Center on Global Energy Policy Working Paper). https://energypolicy.columbia.edu/sites/default/files/pictures/CGEPUSEnergyDiplomacy218.pdf
5. British Petroleum. (2020). British petroleum energy outlook 2020. BP Energy Economics.