Padilla Padilla, Karen, Estefanía Valencia Silva, Gladys Margarita Anrango, Fernando Flores Albuja, y Steven Vásquez Flores. «Mobile Applications for Enhancing Oral Fluency in English As a Foreign Language Learners: A Systematic Review». Revista Ecos de la Academia 11, no. 21 (junio 12, 2025): e1268. Accedido junio 14, 2025. https://revistasojs.utn.edu.ec/index.php/ecosacademia/article/view/1268.