Gaya APA
Kotler, P. et al (2019).
MARKETING 4.0: Moving from Traditional to Digital .
Jakarta:
PT Gramedia Pustaka Utama.
Gaya MLA
Kotler, Philip. et al.
"MARKETING 4.0: Moving from Traditional to Digital".
Jakarta:
PT Gramedia Pustaka Utama,
2019.
E-Book.