Speak With Confidence: Overcome Self-Doubt, Communicate Clearly, ...
Mike Acker
Thoughts to Build On: Thought Power for Successful Living!
M. R. Kopmeyer
Auswertung qualitativer Daten: Strategien, Verfahren und Methoden ...
Andreas M. Scheu
Strategic Management: Awareness and Change
John L. Thompson & Frank Martin
Science of Success
Napoleon Hill
Fundamentals of Technology Project Management
Colleen Garton & Erika McCulloch