Gaya APA
Drucker. (2008).
Managing oneself .
UNITED STATES OF AMERICA:
Unnes Press.
Gaya Chicago
Drucker.
Managing oneself.
UNITED STATES OF AMERICA:
Unnes Press,
2008.
Text.
Gaya MLA
Drucker.
Managing oneself.
UNITED STATES OF AMERICA:
Unnes Press,
2008.
Text.
Gaya Turabian
Drucker.
Managing oneself.
UNITED STATES OF AMERICA:
Unnes Press,
2008.
Print.