Ury, William
The Power of a positive no how to say no and still get to yes
Hodder & Stoughton, 2007
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Baker, William F.
Leading with kindness: how good people consistently get superior results
American Management Association;, 2008
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Burghardt, Steve
Organizing for community action / Steve Burghardt
Sage Publications, 1982
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Daniels, Aubrey C.
Bringing out the best in people : how to apply the astonishing power of positive reinforcement
Mc-Graw-Hill, 2000
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Parkhurst, Wiliam
How to Get publicity
Harper Business, 2000
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