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| 1. |
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Atkinson and Hilgard's Introduction to Psychology 15th Edition
Susan Nolen-Hoeksema, Barbara Fredrickson, Geoffrey Loftus
Häftad. Cengage Learning, Storbritannien, 2009.
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| 2. |
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Positivity
Barbara Fredrickson
Häftad. Oneworld Publications, Storbritannien, 2011.
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| 3. |
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Positivity
Barbara Fredrickson
Häftad. Oneworld Publications, Storbritannien, 2010.
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| 4. |
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Positivity: Top-Notch Research Reveals the 3-To-1 Ratio That Will Change Your Life
Barbara Fredrickson
Häftad. Three Rivers Press (CA), USA, 2009.
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| 5. |
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Positivity
Barbara Fredrickson, Kimberly Farr
Ljudbok. Random House, USA, 2009.
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| 6. |
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Die Macht der guten Gefühle
Barbara L Fredrickson
Inbunden. Campus Verlag GmbH, Tyskland, 2011.
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| 7. |
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Atkinsons Und Hilgards Einfuhrung In die Psychologie
Susan Nolen-Hoeksema, Barbara L Fredrickson, Geoffrey R Loftus
Inbunden. Springer, Tyskland, 2008.
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