Gaya APA
Singgih, Y.
(2015).
NEVER TOO YOUNG TO BECOME A BILLIONAIRE
(
I)
.
Jakarta:
PT. Gramedia.
Gaya MLA
Singgih, Yasa.
"NEVER TOO YOUNG TO BECOME A BILLIONAIRE".
I
Jakarta:
PT. Gramedia,
2015.
Text.