Geschäftsmodell Nachhaltigkeit
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Project Management Bootcamp; A Step-by-Step Guide
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The Negativity Fast: Proven Techniques to Increase Positivity, ...
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Mastering Facilitation: A Guide for Assisting Teams and Achieving ...
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10 Steps to Successful Change Management
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Head First PMP: A Learner's Companion to Passing the Project ...
Jennifer Greene & Andrew Stellman