: Edward de Bono

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6 頂思考帽    臉譜 
How to Be More Interesting  150.13 DEB  Penguin Life 
Six Thinking Hats  153.4 BON  Penguin 
Six Thinking Hats    Penguin 
Teach Yourself to Think  153 DEB  Penguin Life 
Think ! Before It's Too Late    Vermilion 
六頂思考帽    山西人民 
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