(原始内容存档于2020-11-30) (英语). Hayward, Katy. How does the UK Internal Market Bill relate to Northern Ireland?. 倫敦政治經濟學院網誌. 2020-10-19 [2020-11-11]. (原始内容存档于2020-11-18)
Lords, Northern IrelandBill, Memorandum by the Northern Ireland Office.. [2013-01-29]. (原始内容存档于2011-06-05). A New History of Ireland by Theodore William