APA Style
National Geographic Indonesia. ().
Jakarta:
Kompas Gramedia.
Chicago Style
National Geographic Indonesia.
.
Jakarta:
Kompas Gramedia,
.
Text.
MLA Style
National Geographic Indonesia.
.
Jakarta:
Kompas Gramedia,
.
Text.
Turabian Style
National Geographic Indonesia.
Jakarta:
Kompas Gramedia,
.
Print.