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alan a vengel
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Cilt sonuçları
20 minutes to a top performer
Alan A. Vengel · McGraw-Hill [distributor]
228 sayfa · 2009
Employees / Employee motivation / Coaching of / Communication in management / Mentoring in business
The influence edge
Alan A. Vengel · Berrett-Koehler Publishers
106 sayfa · 2000
Teams in the workplace / Influence (psychology) / Success in business