1. American Diction for Singers: Standard American Diction for Singers and Speakers;Forward,2001
2. Language and diction: prolegomena to a column on language and diction;De'Ath;J Singing,2002
3. The Structure of Singing;Miller,1996
4. Diction;Moriarty,1975
5. Singing, the Mechanism and the Technic;Vennard,1967