Gaya APA
Ishaq, R, E.
(2017).
Public Relations: Teori dan Praktik
(
revisi)
.
Malang:
Intrans Publishing.
Gaya MLA
Ishaq, Ropingi, El.
"Public Relations: Teori dan Praktik".
revisi
Malang:
Intrans Publishing,
2017.
Umum.