Spezzini, Susan, y Rebecca Oxford. «Oral L2 Comprehensibility Among English Immersion Learners When Giving School Speeches». Ñemitỹrã, vol. 1, n.º 1, diciembre de 2019, pp. 37-64, https://revistascientificas.una.py/index.php/nemityra/article/view/1161.