Gaya APA
Gasing, S, S., Suryanto, .
(2016).
Public Relations
.
Yogyakarta:
ANDI Yogyakarta.
Gaya MLA
Gasing, Syarifuddin, S.., Suryanto, .
"Public Relations".
Yogyakarta:
ANDI Yogyakarta,
2016.
Text.