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