Gaya APA
Gassing. (2016).
Public relations .
Yogyakarta:
.
Gaya Chicago
Gassing.
Public relations.
Yogyakarta:
,
2016.
Text.
Gaya MLA
Gassing.
Public relations.
Yogyakarta:
,
2016.
Text.
Gaya Turabian
Gassing.
Public relations.
Yogyakarta:
,
2016.
Print.