Gaya APA

Associates, D, C, &. (2017). How To Win Friends & Influence People In The Digital Age (Cet. 16). Jakarta: PT. Gramedia ustaka Utama.

Gaya MLA

Associates, Dale, Carnegie, &. "How To Win Friends & Influence People In The Digital Age". Cet. 16 Jakarta: PT. Gramedia ustaka Utama, 2017. Text.