Filz, R. (2009). Vocal Percussion: Basics ; interaktiver Workshop / Richard Filz. Universal Ed..
Lua i Stíl Chicago (17ú heag.)Filz, Richard. Vocal Percussion: Basics ; Interaktiver Workshop / Richard Filz. Wien: Universal Ed., 2009.
Lua MLA (8ú heag.)Filz, Richard. Vocal Percussion: Basics ; Interaktiver Workshop / Richard Filz. Universal Ed., 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.