Covey, S. R., Covey, S., Merrill, A. R., & Merrill, R. R. (1994). First Things First: To Live, to Love, to Learn, to Leave a Legacy. Free Press.
Pashler, H., McDaniel, M., Rohrer, D., & Bjork, R. (2009). Learning Styles: Concepts and Evidence. Psychological Science in the Public Interest, 9(3), 105–119.
Fiore, N. (2007). The Now Habit: A Strategic Program for Overcoming Procrastination and Enjoying Guilt-Free Play. TarcherPerigee.