Gaya APA
SETIAWAN, P, K, H, K, I.
(2019).
MARKETING 4.0
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Jakarta:
PT. GRAMEDIA.
Gaya MLA
SETIAWAN, PHILIP, KOTLER,, HERMAWAN, KARTAJAYA,, IWAN.
"MARKETING 4.0".
Jakarta:
PT. GRAMEDIA,
2019.
.