Gaya APA
Sundoro, . (2010).
GEOGRAPHY REVEALED THE AMAZING OF THE VOLCANO ACTIVITIES MOUNTAIN & VOLCANO .
Jakarta Selatan:
Pustaka Lebah.
Gaya MLA
Sundoro, .
"GEOGRAPHY REVEALED THE AMAZING OF THE VOLCANO ACTIVITIES MOUNTAIN & VOLCANO".
Jakarta Selatan:
Pustaka Lebah,
2010.
Text.