Gaya APA
Purnama, P.
(2017).
Focus on the English Parts of Speech
(
Ed.1 Cet.1)
.
Yogyakarta:
Textium.
Gaya MLA
Purnama, Puji.
"Focus on the English Parts of Speech".
Ed.1 Cet.1
Yogyakarta:
Textium,
2017.
Text.