Gaya APA

Sopian, S, M. (2016). Public Relations Writing: Konsep, Teori, Praktik . : Gramedia Widiasarana Indonesia.

Gaya MLA

Sopian, S.sos.,, M.i.k.. "Public Relations Writing: Konsep, Teori, Praktik". : Gramedia Widiasarana Indonesia, 2016. Text.