Gaya APA
Kurniawan, N. (2014).
Die Hard Antrepreneur - Born a Leader, Made a Champion .
Jakarta:
Elex Media Komputindo.
Gaya MLA
Kurniawan, Nicholas.
"Die Hard Antrepreneur - Born a Leader, Made a Champion".
Jakarta:
Elex Media Komputindo,
2014.
Book.