Olivo Tello, K. M. “The Influence of Spanish on the Pronunciation of the English Phonemes /t/ and /d/ In Students of the Eighth Level of the International Commerce Career at PUCESE”. International Congress on the Didactics of the English Language, vol. 2, no. 1, June 2017, https://revistas.pucese.edu.ec/ICDEL/article/view/139.