Visionary Leadership Skills: Creating a World to Which People ...
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Conceptions of Leadership: Enduring Ideas and Emerging Insights
George R. Goethals & Scott T. Allison & Roderick M. Kramer & David M. Messick
Research Methods for Everyday Life: Blending Qualitative and ...
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The Standard for Organizational Project Management (OPM)
Project Management Institute
Lean Six Sigma: Erfolgreiche Kombination von Lean Management, ...
Armin Töpfer
How to Influence Anyone, Anywhere, Every Time: The Art and Science ...
Colin James & Erica Bagshaw