Gaya APA
Kasim, D, K. (2017).
April 2017: National Geographic Traveler .
Jakarta:
National Geographic Traveler.
Gaya MLA
Kasim, Didi, Kaspi.
"April 2017: National Geographic Traveler".
Jakarta:
National Geographic Traveler,
2017.
GEN - Bacaan/Seri Non-Fiksi.