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web.archive.org
Smyth, Anne. »Tha Yeir o Grace«. Ullans (Nummer 11 Ware 2010). Arhivirano iz spletišča dne 22. junija 2018. Pridobljeno 22. junija 2018.
Whyte, John (1983). »How much discrimination was there under the unionist regime, 1921–68?«. V Gallagher, Tom; O'Connell, James (ur.). Contemporary Irish Studies. Manchester: Manchester University Press. ISBN0-7190-0919-7. Arhivirano iz prvotnega spletišča dne 16. januarja 2019. Pridobljeno 30. avgusta 2018.