1. Accinno, M. (2019). Extraordinary voices: Helen Keller, music and the limits of oralism. Journal of Interdisciplinary Voice Studies, 4(2), 139–156. https://doi.org/10.1386/jivs_00002_1
2. Alexander, M. (2020, August 08). America, this is your chance. The New York Times, 8, 2020. https://www.nytimes.com/2020/06/08/opinion/george-floyd-protests-race.html
3. Arslan, H. (2018). An introduction to education. Cambridge Scholars.
4. Bass, E. Z. (2012, April 26). Helen Keller in love. Deep South Magazine. https://deepsouthmag.com/2012/04/26/helen-keller-in-love/.
5. Breidlid, A., Brøgger, F. C., Gulliksen, O. T., & Sirevag, T. (2013). American culture: An anthology. Routledge.