A Guide to the Project Management Body of Knowledge
Project Management Institute, Inc.
Excel Formulas & Functions for Dummies
Ken Bluttman
30 Essential Skills for the Qualitative Researcher
John W. Creswell
The Life Coaching Connection: How Coaching Changes Lives
Steve Chandler
PMP®: Project Management Professional Study Guide
Joseph Phillips
The Handbook of Project Management; Sixth Edition
Martina Huemann & Rodney Turner