Bremmer, Ian. 2021. https://time.com/5955239/northern-ireland-protests-peace/. 15 April. Diakses pada 21 April 2021. https://time.com/5955239/northern-ireland-protests-peace/.
Hirst, Michael. 2021. NI riots: What is behind the violence in Northern Ireland? 14 April. Diakses pada 22 April 2021. https://www.bbc.com/news/uk-northern-ireland-56664378.
O'Carroll, Lisa, dan Rory Carroll. 2021. Northern Ireland protocol has no alternative, says EU ambassador. 6 April. Diakses pada 22 April 2021. https://www.theguardian.com/uk-news/2021/apr/06/northern-ireland-protocol-critics-have-no-alternative-says-eu-ambassador.
Perigo, Billy. 2021. Northern Ireland Is Experiencing Its Worst Violence in Years. What's Behind the Unrest? 9 April. Diakses pada 22 April 2021. https://time.com/5953714/northern-ireland-riots/.
 Guiding principles for the Dialogue on Ireland/Northern Ireland, TF50 (2017) 15 -- Commission to UK, 2017. https://ec.europa.eu/info/sites/info/files/dialogue_ie-ni.pdfÂ
British-Irish Agreement: Annex 1 "The Agreement Reached on the Multi-Party Talks": Rights, Safeguards and Equality of Opportunity.
The Impact and Consequences of Brexit for Northern Ireland, 2017. http://borderpeople.info/site/wp-content/uploads/IPOL_BRI2017583116_EN.pdf
