1. Amoko, Apollo. 1999. Casting Aside Colonial Occupation: Intersections of Race, Sex, and Gender in Cloud Nine and… Modern Drama 42 (1) (Spring): 45–58.
2. Angel-Perez, Elisabeth. 2013. Reinventing ‘Grand Narratives’: Barker’s Challenge to Postmodernism. In Howard Barker’s Art of Theatre, ed. David Ian Rabey and Sarah Goldingay, 38–50. Manchester: Manchester University Press.
3. Aston, Elaine. 1995. Daniels in the Lion’s Den: Sarah Daniels and the British Backlash. Theatre Journal 47 (3): 393–403.
4. Barker, Howard. 1989a. Arguments for a Theatre. London: John Calder Ltd.
5. Barker, Howard. 1989b. Brutopia. In Collected Plays: Volume 2. London: Calder Publications Ltd.