Gaya APA
Kasim, D, K. (2013).
Agustus 2013: National Geographic Indonesia (Agustus 2013).
Jakarta:
National Geographic.
Gaya MLA
Kasim, Didi, Kaspi.
"Agustus 2013: National Geographic Indonesia".
Agustus 2013
Jakarta:
National Geographic,
2013.
Text.