Barbara L. Fredrickson, Ph.D.

Boeken
Love 2.0 Love 2.0
Love 2.0
2013
Positivity Positivity
Positivity
2009

Audioboeken
Positivity: Groundbreaking Research Reveals How to Embrace the Hidden Strength of Positive Emotions, Overcome Negativity, and Thrive (Unabridged) Positivity: Groundbreaking Research Reveals How to Embrace the Hidden Strength of Positive Emotions, Overcome Negativity, and Thrive (Unabridged)
Positivity: Groundbreaking Research Reveals How to Embrace the Hidden Strength of Positive Emotions, Overcome Negativity, and Thrive (Unabridged)
2009