APA (7th ed.) Citation

(2015). National geographic September s/d Desember 2015. Kompas Gramedia.

Chicago Style (17th ed.) Citation

National Geographic September S/d Desember 2015. Kompas Gramedia, 2015.

MLA (8th ed.) Citation

National Geographic September S/d Desember 2015. Kompas Gramedia, 2015.

Warning: These citations may not always be 100% accurate.