Gaya APA
Management Principles And Functions. (1989).
:
.
Gaya Chicago
Management Principles And Functions.
Keempat.
:
,
1989.
Text.
Gaya MLA
Management Principles And Functions.
Keempat.
:
,
1989.
Text.
Gaya Turabian
Management Principles And Functions.
:
,
1989.
Print.