Ahrens, Sönke. How to Take Smart Notes. Createspace Independent Publishing Platform, 2017.

Becker, Ernest. The Denial of Death. Simon and Schuster, 2007, p. 2.

Greene, Robert. Mastery. Penguin, 2012.

Wickman, Gino. Traction. BenBella Books, Inc., 2012.

Journals & Research Papers

DePasque, Samantha, and Elizabeth Tricomi. “Effects of Intrinsic Motivation on Feedback Processing during Learning.” NeuroImage, Elsevier BV, Oct. 2015, pp. 175–86.