1. The social life of cultural value
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3. Aikin, William A. 1920. The Voice: An Introduction to Practical Phonology, with Diagrams and Containing a New Pronunciation Chart with Symbols. London: Longmans, Green. https://hdl.handle.net/2027/coo1.ark:/13960/t84j12b5v.
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5. Reflections on contemporary commercial singing: an insider’s perspective