Newell, Michael W.
Preparing for the project management professional (PMP) certification exam
American Management Association, 2005
 eBooks
A Guide to the project management body of knowledge : PMBOK Guide
project Management Insitute
Project Management Institute, 2001
 Buku Teks
A Guide to the project management body of knowledge (PMBOK Guide)
Project Management Institute, 2013
 Buku Teks
A guide to the project management body of knowledge (PMBOK guide).
Project Management Institute, 2000
 Buku Referensi
Johnson, James Weldon
Along this way
Viking , 1969
 Buku Teks