Gaya APA
M., Z., A., P., Purindraswari, (2018).
Developing English Skill : Practice Makes Perfect. Edisi Terbaru (Ed.1, Cet.1).
Yogyakarta:
.
Gaya MLA
M., Zainul, Arifin, PWD,., Purindraswari, .
"Developing English Skill : Practice Makes Perfect. Edisi Terbaru".
Ed.1, Cet.1
Yogyakarta:
,
2018.
Textbook.