Gaya APA
Sholihin, R.
(2019).
Digital Marketing di Era 4.0
(
Cet. 1)
.
Yogyakarta, DIY:
Quadrant.
Gaya MLA
Sholihin, Riadhus.
"Digital Marketing di Era 4.0".
Cet. 1
Yogyakarta, DIY:
Quadrant,
2019.
Text.