Gaya APA
Ament, K, W., Indriastuty, R, D.
(2017).
Interactive English: 2
.
Jakarta:
Yudhistira.
Gaya MLA
Ament, Kenneth, W.., Indriastuty, Rina, Dwi.
"Interactive English: 2".
Jakarta:
Yudhistira,
2017.
Text.