21 Days of Effective Communication
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Bringing the PMBOK Guide to Life: A Companion for the Practicing ...
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LEAN Production – Easy and Comprehensive: A Practical Guide ...
Roman Hänggi & André Fimpel & Roland Siegenthaler
Goal Directed Project Management: Effective Techniques and Strategies
Erling S. Andersen & Kristoffer V. Grude & Tor Haug
Lexikon der Projektmanagement[..]
Günter Drews & Norbert Hillebrand
How to Keep Your Cool: An Ancient Guide to Anger Management
Seneca