Hill, B. M. (2011). The official ubuntu book (6th ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Hill, Benjamin Mako. The Official Ubuntu Book. 6th ed. Upper Saddle River, NJ: Prentice Hall, 2011.
Lua MLA (8ú heag.)Hill, Benjamin Mako. The Official Ubuntu Book. 6th ed. Prentice Hall, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.