Recenzie The 80/20 Principle

The 80/20 Principle

The 80/20 Principle

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Millions of highly effective people have become more successful by understanding the simple fact that 80% of your results come from 20% of your efforts. All you have to do is identify the 20 percent that leads to 80 percent. The 80/20 Principle shows you how. Richard Koch's million-copy-selling... prečítať celé 

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