Gaya APA
Carnegie, D. (2012).
How to Win Friends & Influence People in The Digital Age (Hard Copy) .
Jakarta:
PT Gramedia Pustaka Utama.
Gaya MLA
Carnegie, Dale.
"How to Win Friends & Influence People in The Digital Age (Hard Copy)".
Jakarta:
PT Gramedia Pustaka Utama,
2012.
Text.