Gaya APA
Yoo-Jin, P., Putri, N.
(2016).
Happy & Fun Activities: Keliling Dunia
.
Jakarta:
Bhuana Ilmu Populer.
Gaya MLA
Yoo-Jin, Pyo., Putri, Novalya.
"Happy & Fun Activities: Keliling Dunia".
Jakarta:
Bhuana Ilmu Populer,
2016.
Book.