Gaya APA

Purworini, A, I, D, D, W, D., Budi, A, I, S. (2011). Public relations & corporate social responsbility (Cet. 2). Gorontalo: Aspikom.

Gaya MLA

Purworini, Aswad, Ishak,, Darmastuti,, Diah, Wardani,, Dian., Budi, Aswad, Ishak,, Setio. "Public relations & corporate social responsbility". Cet. 2 Gorontalo: Aspikom, 2011. Text.