1. Brookfield, Stephen D.; Participation Self-Assessment Form. https://www.stephenbrookfield.com/workshop. Accessed 12 Dec. 2019.
2. Kelly, T. E. (1986) Discussing Controversial Issues: Four Perspectives on the Teacher's Role, Theory and Research in Social Education, 14(2): 113–38.
3. Four Ways to Spark Engaging Classroom Discussions. Association of College and University Educators. 30 Dec. 2015. https://community.acue.org/blog/four-more-ways-to-spark-classroom-discussions-and-keep-students-engaged/. Accessed 22 Nov. 2019.
4. Lockwood, A.; Harris, D. Reasoning with Democratic Values; Ethical Problems in United States History, vols. 1 and 2, Instructors Manual; Teachers College Press: New York, 1985.
5. Newmann, F. M.; Oliver, D. W. Clarifying Public Controversy: An Approach to Teaching Social Studies; Little, Brown: Boston, 1970.
6. Maresh, Justin J.; A Guide to Critical Thinking; http://think.maresh.info. Accessed 3 Feb 2020.
7. Berman, S.; (1987) Beyond Critical Thinking: Teaching for Synthesis, Educators for Social Responsibility Forum 6, no. 1, 1(10).
8. Selman, R. L.; Social-Cognitive Understanding: A Guide to Educational and Clinical Practice, Moral Development and Behavior: Theory Research and Social Issues, ed. T. Lickona; Holt, Rinehart, & Winston: 1976, pp 299–316.
9. Adams, S.; Loserthink: How Untrained Brains Are Ruining America; Portfolio: New York, 2019.
10. Tyson, Neil deGrasse; "Chapter 19: Paths To Discovery"; The Columbia History of the 20th Century; Bulliet, Richard W. (ed.); Columbia University Press: New York, NY, 1998.