Delgado Heredia, Pierina Deciré, y German Wenceslao Carrera Moreno. «Pronunciation Difficulties Among Ecuadorian Efl Students: Causes and Classroom Solutions». Revista Científica Multidisciplinaria SAPIENTIAE. ISSN: 2600-6030 9, no. 20 (julio 15, 2026): 508–533. Accedido julio 15, 2026. https://publicacionescd.uleam.edu.ec/index.php/sapientiae/article/view/2053.