Gaya APA
Zulkifli. (2020).
Green marketing .
Yogyakarta:
Graha Ilmu.
Gaya Chicago
Zulkifli.
Green marketing.
Yogyakarta:
Graha Ilmu,
2020.
Text.
Gaya MLA
Zulkifli.
Green marketing.
Yogyakarta:
Graha Ilmu,
2020.
Text.
Gaya Turabian
Zulkifli.
Green marketing.
Yogyakarta:
Graha Ilmu,
2020.
Print.