Gaya APA
Sundoro, . (2008).
Space Journey: Space Exploration Fun Facts and Stories Behind. My First Cartoonal EncyclopeBee .
Jakarta:
Pustaka Lebah.
Gaya MLA
Sundoro, .
"Space Journey: Space Exploration Fun Facts and Stories Behind. My First Cartoonal EncyclopeBee".
Jakarta:
Pustaka Lebah,
2008.
Text.