Lewis, S. (2011). Positive psychology at work: How positive leadership and appreciative inquiry create inspiring organizations. Wiley-Blackwell.
Chicago-viite (17. p.)Lewis, Sarah. Positive Psychology at Work: How Positive Leadership and Appreciative Inquiry Create Inspiring Organizations. Oxford: Wiley-Blackwell, 2011.
MLA-viite (9. p.)Lewis, Sarah. Positive Psychology at Work: How Positive Leadership and Appreciative Inquiry Create Inspiring Organizations. Wiley-Blackwell, 2011.
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