Gaya APA
Herlambang, S. (2010).
Public Relations and Coustomer Service (Edisi 1; Cetakan 1).
Yogyakarta:
gosyen publishing.
Gaya MLA
Herlambang, Susatyo.
"Public Relations and Coustomer Service".
Edisi 1; Cetakan 1
Yogyakarta:
gosyen publishing,
2010.
Text.