1. Ashcroft, M. 2016. How the United Kingdom Voted on Thursday and Why, 24 June, Available at: http://lordashcroftpolls.com/2016/06/how-the-united-kingdom-voted-and-why/ (accessed 30 June 2019).
2. Baldini, G. et al. 2020. Taking Back Control? Brexit, Sovereignism and Populism in Westminster (2015–17). European Politics and Society, 21(2): 219–234.
3. BBC. 2019. European Election 2019: UK Results in Maps and Charts, Available at: https://www.bbc.com/news/uk-politics-48403131.
4. BBC. 21 February 2016, https://www.bbc.com/news/av/uk-politics-eu-referendum-35624753.
5. Beasley, R.K., Kaarbo, J., Oppermann, K. 2021. Role Theory, Foreign Policy, and the Social Construction of Sovereignty: Brexit Stage Right. Global Studies Quaterly, 1(1): 1–14.