APA (7th ed.) Citation

Heller, R. (2003). BILL GATES. Erlangga.

Chicago Style (17th ed.) Citation

Heller, Robert. BILL GATES. Erlangga, 2003.

MLA (8th ed.) Citation

Heller, Robert. BILL GATES. Erlangga, 2003.

Warning: These citations may not always be 100% accurate.