| Title | : | The Happy Pessimist – why negative thinking is positive | Mattias Lundberg & Jan Bylund | TEDxUmeå |
| Uploader | : | TEDx Talks |
| Type of file | : | Audio MP3 (.mp3) |
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Download The Happy Pessimist – why negative thinking is positive | Mattias Lundberg & Jan Bylund | TEDxUmeå MP3 & Video MP4
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