Gaya APA
Associates,INC, D, C, &. (2012).
How To Win Friends & Influence People (in the Digital Age) .
Jakarta:
PT Gramedia Pustaka Utama.
Gaya MLA
Associates,INC, Dale, Carnegie, &.
"How To Win Friends & Influence People (in the Digital Age)".
Jakarta:
PT Gramedia Pustaka Utama,
2012.
Text.