Gaya APA
Widyati, N, F.
(2019).
Hari Tanpa Ponsel
.
Bandung:
Muffin Graphics (PT Cerita Anak Bangsa).
Gaya MLA
Widyati, Nashwa, Fazila.
"Hari Tanpa Ponsel".
Bandung:
Muffin Graphics (PT Cerita Anak Bangsa),
2019.
Text.