Ascencio Vàsquez, J. E., Marroquìn Valiente, B. E., Diaz Chàvez, I. A., Peraza Galdamez, D. G., & Ruiz Chacòn, P. R. (2012). Analysis of the main factors that enhance intensive basic english students' development of the oral communication skills - listening and speaking ath the Western Multidisciplinary Campus of the University of El Salvador, semester 1 - 2012. Santa Ana, El Salvador: Universidad de El Salvador.

Ascencio Vàsquez, Jorge Ernesto, Blanca Estela Marroquìn Valiente, Isaac Abraham Diaz Chàvez, Deisy Guadalupe Peraza Galdamez, and Patricia Rennè Ruiz Chacòn. Analysis of the Main Factors That Enhance Intensive Basic English Students' Development of the Oral Communication Skills - Listening and Speaking Ath the Western Multidisciplinary Campus of the University of El Salvador, Semester 1 - 2012. Santa Ana, El Salvador: Universidad de El Salvador, 2012.

Ascencio Vàsquez, Jorge Ernesto, et al. Analysis of the Main Factors That Enhance Intensive Basic English Students' Development of the Oral Communication Skills - Listening and Speaking Ath the Western Multidisciplinary Campus of the University of El Salvador, Semester 1 - 2012. Santa Ana, El Salvador: Universidad de El Salvador, 2012.