Quizhpe Vire, V. V. (2014). Methodological strategies and the improvement of listening and speaking english skills with the students of 1st and 2nd years of bachillerato at Emiliano Ortega Espinoza high school. Catamayo town. Academic period 2012-2013.
Čikaški stil citiranja (17. izdanje)Quizhpe Vire, Veronica Vanessa. Methodological Strategies and the Improvement of Listening and Speaking English Skills with the Students of 1st and 2nd Years of Bachillerato at Emiliano Ortega Espinoza High School. Catamayo Town. Academic Period 2012-2013. 2014.
MLA način citiranja (9. izdanje)Quizhpe Vire, Veronica Vanessa. Methodological Strategies and the Improvement of Listening and Speaking English Skills with the Students of 1st and 2nd Years of Bachillerato at Emiliano Ortega Espinoza High School. Catamayo Town. Academic Period 2012-2013. 2014.