Gaya APA
PETRA, M., DEWI, S, T, [.
(2015).
Forever in my heart
.
Yogyakarta:
Sheila.
Gaya MLA
PETRA, Monica., DEWI, Sisilia, Triana, [ed.].
"Forever in my heart".
Yogyakarta:
Sheila,
2015.
Buku.