Bubble wort extract served as a material in the building of the bubble-shaped metropolises of Otoh Gunga found on the Naboo planet located in the Mid Rim. It was combined with plasma to cultivate the bubble-like structures of the Gungan people.
- Ultimate Star Wars
- Star Wars: Absolutely Everything You Need to Know (Initially recognized as Bubble wort extract)
- Star Wars: Complete Locations
- Star Wars: The Complete Visual Dictionary, New Edition
- Star Wars Encyclopedia: The Comprehensive Guide to the Star Wars Galaxy