Gaya APA
Riordan, R., Indardini, R.
(2019).
The Heroes of Olympus: The Mark of Athena
.
Jakarta:
Mizan Fantasi.
Gaya MLA
Riordan, Rick., Indardini, Reni.
"The Heroes of Olympus: The Mark of Athena".
Jakarta:
Mizan Fantasi,
2019.
Book.