Díaz Rodríguez, G. M., Fabián Menjivar, S. C., Urquía, K. X., Aguilar, J. H., & Ayala, E. N. Difficulties in the pronunciation of english vowels by the fifth-year students from modern languages major at the Foreign Language Department of the University of El Salvador during the year 2015.

Díaz Rodríguez, Grabiela María, Sandra Carolina Fabián Menjivar, Kenia Xiomara Urquía, Jorge Humberto Aguilar, and Edgar Nicolás Ayala. Difficulties in the Pronunciation of English Vowels By the Fifth-year Students From Modern Languages Major At the Foreign Language Department of the University of El Salvador During the Year 2015.

Díaz Rodríguez, Grabiela María, et al. Difficulties in the Pronunciation of English Vowels By the Fifth-year Students From Modern Languages Major At the Foreign Language Department of the University of El Salvador During the Year 2015.