Gaya APA

Pamungkas, I, N, A., Nurhayati, I, K. (2016). English for Communications Purposes (Cet.1). Yogyakarta: Penerbit Deepublish.

Gaya MLA

Pamungkas, Indra, Novianto, Adibayu., Nurhayati, Iis, Kurnia. "English for Communications Purposes". Cet.1 Yogyakarta: Penerbit Deepublish, 2016. Text.