Gaya APA
Pamungkas, I, N, A., Nurhayati, I, K. (2016).
English for communication purpose .
Yogyakarta:
Deepublish,.
Gaya MLA
Pamungkas, Indra, Novianto, Adibayu., Nurhayati, Iis, Kurnia.
"English for communication purpose".
Yogyakarta:
Deepublish,,
2016.
Text.