Berger, Kevin. "Why We Still Need Monsters” Monsters: A Bedford Spotlight Reader, edited by Andrew J. Hoffman, Bedford, 2016
Cancilla, Christian J. “Review: ‘Joker’ Holds a Mirror up to Society.” Dailyemerald.com, Daily Emerald, 8 Oct. 2019, https://www.dailyemerald.com/arts-culture/review-joker-holds-a-mirror-up-to-society/article_284d884a-e974-11e9-9d47-8fa9ae3995ba.html.
“Create a Pie Chart.” Create a Pie Chart, Free . Customize, Download and Easily Share. Just Enter the Amounts, Pick Some Colors/Fonts, and We'll Take It from There!, https://www.meta-chart.com/pie#/display.
Driscoll, Annabel, and Mina Husain. “Why Joker's Depiction of Mental Illness Is Dangerously Misinformed.” The Guardian, Guardian News and Media, 21 Oct. 2019, https://www.theguardian.com/film/2019/oct/21/joker-mental-illness-joaquin-phoenix-dangerous-misinformed.
Fitriani, Yustina. “Analysis of Psychological Aspects of The Main Character in Movie ‘Joker’ Based on Sigmund Freud Theory.” Journal on Language and Literature, vol. 6, ser. 1, Dec. 2019, pp. 119–127. 1, https://doi.org/10.30812/humanitatis.v6i1.559.
Goins, Zach. “Exit Survey: 'Joker'.” Inside The Film Room, 5 Oct. 2019, https://insidefilmroom.com/2019/10/05/exit-survey-joker/.
Jiang, Emma. “'Joker': The Study of a Man Who Has Lost His Mind.” The Paly Voice, 7 Feb. 2020, https://palyvoice.com/153136/culture/entertainment/joker-the-study-of-a-man-who-has-lost-his-mind/.
“Joker.” Rotten Tomatoes, https://www.rottentomatoes.com/m/joker_2019. “Joker.”
“Joker (2019).” Fandango, 4 Oct. 2019, https://www.fandango.com/joker-2019-214548/movie-overview.
“Joker (2019 Film).” Wikipedia, Wikimedia Foundation, 5 Mar. 2022, https://en.wikipedia.org/wiki/Joker_(2019_film).
Metacritic, 3 Oct. 2019, https://www.metacritic.com/movie/joker.
Obenson, Tambay. “'Joker' Makes a Strange Connection between Arthur Fleck and the Struggles of Black Women - Analysis.” IndieWire, IndieWire, 19 Oct. 2019, https://www.indiewire.com/2019/10/joker-race-problem-black-women-1202182613/.
Phillips, Todd, and Scott Silver. Joker an origin. https://d2bu9v0mnky9ur.cloudfront.net/academy2019/screenplay/joker/joker_new_final.pdf.
Ramirez, Miguel. “‘Joker’ Brings Societal Issues To Light And Does Not Glorify Violence In Viewers.” Stmurattlernews.com, St. Mary's University, 23 Oct. 2019, https://www.stmurattlernews.com/home/2019/10/23/joker-brings-societal-issues-to-light-and-does-not-glorify-violence-in-viewers/.
Robinson, Chauncey K. “'Joker' Exposes the Broken Class System That Creates Its Own Monsters.” People's World, People's World, 30 June 2020, https://www.peoplesworld.org/article/joker-exposes-the-broken-class-system-that-creates-its-own-monsters/.
Sharf, Zack. “'Joker' Set in the Past Because Todd Phillips Wants Nothing to Do with the DCEU.” IndieWire, IndieWire, 20 Sept. 2019, https://www.indiewire.com/2019/09/joker-setting-period-movie-separate-dceu-1202174964/.
Sharf, Zack. “'Joker' Director Spent One Year Convincing Warner Bros. to Say Yes to R-Rated Vision.” IndieWire, IndieWire, 28 Aug. 2019, https://www.indiewire.com/2019/08/joker-r-rating-director-warner-bros-clash-1202169517/.
Skryabin, Valentin Yurievich. “Analysing Joker: An Attempt to Establish Diagnosis for a Film Icon: Bjpsych Bulletin.” Cambridge Core, Cambridge University Press, 7 Jan. 2021, https://www.cambridge.org/core/journals/bjpsych-bulletin/article/analysing-joker-an-attempt-to-establish-diagnosis-for-a-film-icon/73EAAA5833A820B3B8EC1096FF55710F.
Spielman, Rose M., et al. Psychology 2E. OpenStax College, Rice University, 2020, pp. 384 - 620
“Symptoms and Types of Personality Disorders.” Bell Foundation®, 13 Jan. 2020, https://www.bellfoundation.org.au/symptoms-and-types-of-personality-disorders/.