DELGADO HEREDIA, P. D.; CARRERA MORENO, G. W. Pronunciation difficulties among ecuadorian efl students: causes and classroom solutions. Revista Científica Multidisciplinaria SAPIENTIAE. ISSN: 2600-6030, [S. l.], v. 9, n. 20, p. 508–533, 2026. DOI: 10.56124/sapientiae.v9i20.023. Disponível em: https://publicacionescd.uleam.edu.ec/index.php/sapientiae/article/view/2053. Acesso em: 15 jul. 2026.