1. Terminology ANSA. American National Standard Acoustical Terminology ANSI S1.1-1994. 1994. ANSI S11.
2. Can inexperienced listeners hear who is singing? The role of onset cues;Erickson;J Voice,2018
3. Singing: The Mechanism and The Technique;Vennard,1967
4. A Complete Treatise on the Art of Singing: Part Two;Garcia,1975
5. Acoustic properties of voice timbre types and their influence on voice classification;Cleveland;J Acoust Soc Am,1977