Positivity : grounbreaking research to release your inner optimist and thrive
av Barbara Fredrickson
Häftad, 2011
Cram 101 textbook outlines to accompany : Atkinson and Hilgards introduction to psychology/
av Barbara Fredrickson
Häftad, Upplaga 14, 2007
Atkinson & Hilgard's introduction to psychology
av Edward Smith, Susan Nolen-Hoeksema, Barbara Fredrickson m.fl.
Inbunden, Upplaga 14, 2003
Love 2.0 : creating happiness and health in moments of connection
av Barbara Fredrickson
Häftad, 2014