Gaya APA

Gassing, S, S., Suryanto, . (2016). Public relations (Cet.1.). Yogyakarta: Penerbit Andi.

Gaya MLA

Gassing, Syarifuddin, S.., Suryanto, . "Public relations". Cet.1. Yogyakarta: Penerbit Andi, 2016. Transparency.