^Teo، Thomas (1998). "Klaus Holzkamp and the rise and decline of German Critical Psychology". History of Psychology. ج. 1 ع. 3: 235–253. DOI:10.1037/1093-4510.1.3.235.
^Teo، Thomas (2017). "Subjectivity, aesthetics, and the nexus of injustice: From traditional to street art". في Awad، S. H.؛ Wagoner، B (المحررون). Street art of resistance. Palgrave Macmillan. ص. 39–62. ISBN:9783319633305.