Rossa, Priscila, et al. “Some Problems of Diphthongal Phonological Awareness of Brazilian Professors of English As L2”. Traços de Linguagem - Revista de Estudos Linguísticos, vol. 5, no. 1, Nov. 2021, https://doi.org/10.30681/2594.9063.2021v5n1id5999.