1.
Obregón Mayorga Ángel P, Logroño Becerra MA, Rojas Castro CE. The use of Duolingo as a Support Tool in English Language Learning . CCD [Internet]. 2021Feb.5 [cited 2024Nov.24];4(1.1):250-66. Available from: https://cienciadigital.org/revistacienciadigital2/index.php/ConcienciaDigital/article/view/1557