80
How to say thank you
Gratitude at Work: How to Say Thank You, Give Kudos, and Get the Best From Those You Lead by April Kelly
WooHoo Press (2009)
Envy and Gratitude and Other Works, 1946 - 1963 by Melanie Klein
The Free Press (2002)
Thank You Power: Making the Science of Gratitude Work for You by Deborah Norville
Thomas Nelson (2008)
Gratitude Works: Open Your Heart to Love by Katherine Scherer
K & E Innovations LLP (2004)
The Happiness Advantage: The Seven Principles of Positive Psychology That Fuel Success and Performance at Work by Shawn Achor
Crown Business (2010)
