Gaya APA
Chaffey, D. (2015).
Digital Business and E-Commerce Management Strategy, Implementation and Practice (Edisi 6).
Harlow:
Pearson.
Gaya MLA
Chaffey, Dave.
"Digital Business and E-Commerce Management Strategy, Implementation and Practice".
Edisi 6
Harlow:
Pearson,
2015.
Text.