1. TMEA. “Aligned.” Accessed December 1, 2019. https://align.tmea.org/align_2022/Charts/VocaL_LSC_2020_2022_Apportionment.pdf.
2. egion 9 Policies and Procedures LSC 2019-2020;Labonski,2019
3. Criteria for selecting repertoire;Nix;J Singing,2002
4. The Functional Unity of the Singing Voice 2ed;Doscher,1994
5. The Diagnosis and Correction of Vocal Faults;McKinney,1994