Gaya APA
Singgih, Y.
(2015).
Never Too Young to Became A Billionaire
(
Cet.1)
.
Jakarta:
Elex Media Komputindo.
Gaya MLA
Singgih, Yasa.
"Never Too Young to Became A Billionaire".
Cet.1
Jakarta:
Elex Media Komputindo,
2015.
Text.