Heredia, María Augusta. «Improving Listening Comprehension Using Practical Techniques in the English Third and Fourth Levels». Kronos – The Language Teaching Journal 1, no. 01 (octubre 3, 2018): 61–74. Accedido noviembre 21, 2024. https://revistadigital.uce.edu.ec/index.php/KronosJournal/article/view/855.