Gaya APA
Angel, George G. (2010).
PMP Certification A Beginner's Guide .
New York:
McGraw Hill.
Gaya Chicago
Angel, George G.
PMP Certification A Beginner's Guide.
New York:
McGraw Hill,
2010.
Buku Tercetak.
Gaya MLA
Angel, George G.
PMP Certification A Beginner's Guide.
New York:
McGraw Hill,
2010.
Buku Tercetak.
Gaya Turabian
Angel, George G.
PMP Certification A Beginner's Guide.
New York:
McGraw Hill,
2010.
Buku Tercetak.