Gaya APA
Riordan, R.
(2010).
Percy Jackson and the Olympians: 4 the battle of the labyrinth
.
Jakarta:
Mizan Fantasi.
Gaya MLA
Riordan, Rick.
"Percy Jackson and the Olympians: 4 the battle of the labyrinth".
Jakarta:
Mizan Fantasi,
2010.
Text.