Gaya APA
Aksara, B., Mahardika, A. (2017).
Warren Buffett : sang investor dan inspirator dunia .
Yogyakarta:
Genesis Learning.
Gaya MLA
Aksara, Brayan., Mahardika, Arvin.
"Warren Buffett : sang investor dan inspirator dunia".
Yogyakarta:
Genesis Learning,
2017.
Text.