Alvarado Lima, L. A., Escalante, J. A., Alvarado Martìnez, C. J., Clemente Pleitez, K. M., Olmedo Chinchilla, E. G., & Ponce Mejìa, D. I. (2014). Analysis of the effectiveness of lesson plans used to help students in livels 17, 18 and 20 of the the foreing language extension program of the Western Multidisciplinary Campus of the University of El Salvador achieve socio linguistic and discourse competence. Santa Ana, El Salvador: Universidad de El Salvador.

Alvarado Lima, Luis Alfonso, Juan Antonio Escalante, Claudia Jazmìn Alvarado Martìnez, Karla Maribel Clemente Pleitez, Ena Gladis Olmedo Chinchilla, and Dina Ivette Ponce Mejìa. Analysis of the Effectiveness of Lesson Plans Used to Help Students in Livels 17, 18 and 20 of the the Foreing Language Extension Program of the Western Multidisciplinary Campus of the University of El Salvador Achieve Socio Linguistic and Discourse Competence. Santa Ana, El Salvador: Universidad de El Salvador, 2014.

Alvarado Lima, Luis Alfonso, et al. Analysis of the Effectiveness of Lesson Plans Used to Help Students in Livels 17, 18 and 20 of the the Foreing Language Extension Program of the Western Multidisciplinary Campus of the University of El Salvador Achieve Socio Linguistic and Discourse Competence. Santa Ana, El Salvador: Universidad de El Salvador, 2014.