1. Ashcroft, B 2012 Introduction: Spaces of Utopia. Spaces of Utopia: An Electronic Journal, 2nd ser., 1: 1–17. ler.letras.up.pt/site/default.aspx?qry=id05id174id2640&sum=sim (Last accessed 4 June 2017).
2. Balasopoulos, A 2004 Unworldly Worldliness: America and the Trajectories of Utopian Expansionism. Utopian Studies, 15(2): 3–35. JSTOR. www.jstor.org/stable/20718667 (Last accessed 4 June 2017).