Benjamin, T., Horvit, M., & Nelson, R. (2005). Music for sight singing (4th ed.). Thomson Schirmer.
Lua i Stíl Chicago (17ú heag.)Benjamin, Thomas, Michael Horvit, agus Robert Nelson. Music for Sight Singing. 4th ed. Belmont, Calif: Thomson Schirmer, 2005.
Lua MLA (9ú heag.)Benjamin, Thomas, et al. Music for Sight Singing. 4th ed. Thomson Schirmer, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.