by Richard Koch
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The 80/20 Principle: The Secret to Success by Achieving More with Less by Richard Koch |
The 80/20 Individual: How to Build on the 20% of What You do Best by Richard Koch |
Living The 80/20 Way: Work Less, Worry Less, Succeed More, Enjoy More by Richard Koch |
The 5 Essential People Skills: How to Assert Yourself, Listen to Others, and Resolve Conflicts by The Dale Carnegie Organization |




















