^Holborn, Guy. Butterworths Legal Research Guide. Second Edition. Butterworths. 2001. Pages 84, 258, 259. "Northern Ireland Orders in Council" (1998) 29 The Law Librarian 97 (No 2, 2 June 1998). Dickson, Brice. Law in Northern Ireland. Third Edition. Hart Publishing. 2018. Para 3.28 at p 62.