Csikszentmihalyi, M. (1990). "Flow: The Psychology of Optimal experience". New York: Harper & Row
Seligman, M.E.P. (2002). Authentic Happiness: Using the New Positive Psychology to Realize Your Potential for Lasting Fulfillment. New York: Free Press
Seligman, M. (2011). Flourish: A Visionary New Understanding of Happiness and Well-Being. New York.
RSS Feed