– Analysis: Writing Style. Shmoop.com. 2017.web.17 August 2017 https://www.shmoop.com/holes/writing-style.html
– Analysis: Tone. Shmoop.com. 2017.web.17 August 2017 https://www.shmoop.com/holes/tone.html
– Sachar, Louis. Holes. New York: Yearling, 1998. Print