Gaya APA
Hendyarningrum, A.
(2017).
Okko The Sleepy Koala
.
Sidoarjo:
Masmedia Buana Pustaka.
Gaya MLA
Hendyarningrum, Ambar.
"Okko The Sleepy Koala".
Sidoarjo:
Masmedia Buana Pustaka,
2017.
Art Original.