Gaya APA
Pujiastuti, N., Nila, A.
(2017).
Kring Kring !
.
Bandung:
Yayasan Litara.
Gaya MLA
Pujiastuti, Nurhayati., Nila, Adrinalia.
"Kring Kring !".
Bandung:
Yayasan Litara,
2017.
Picture Book.