1. Anderson-Hsieh, J., Johnson, R., & Koehler, K. (1992). The relationship between native speaker judgements of nonnative pronunciation and deviance in segmentals, prosody and syllable structure. Language Learning, 42, 529–555. https://doi.org/10.1111/j.1467-1770.1992.tb01043.x
2. Bione, T., & Cardoso, W. (2020). Synthetic voices in the foreign language context. Language Learning & Technology, 24(1), 169–186 10125/44715.
3. Bouchhioua, N. (2017). The effects of explicit pronunciation instruction on the comprehensibility and intelligibility of Tunisian EFL learners. International Journal of Research Studies in Language Learning, 6(3), 73–88. https://doi.org/10.5861/ijrsll.2016.1480
4. Bovee, N., & Stewart, J. (2009). The utility of shadowing. In A. M. Stoke (Ed.), JALT 2008 Conference Proceedings. JALT Retrieved January 30 2022 from https://jalt-publications.org/recentpdf/proceedings/2008/E158.pdf.
5. Burns, A. (1999). Collaborative action research for English language teachers. Cambridge University Press.