APA Style
Kasim, D, K. (2014).
National Geographic Indonesia; April 2014 (Mungkinkah Batu Bara Bersih?) .
Jakarta:
National Geographic Society.
MLA Style
Kasim, Didi, Kasipi.
"National Geographic Indonesia; April 2014 (Mungkinkah Batu Bara Bersih?)".
Jakarta:
National Geographic Society,
2014.
Text.