Pardo Ordóñez, K. G. (2014). Active strategies and their influence on the development of listening and speaking skills of the english language with the students of 8th, 9th and 10th years of basic education at unidad educativa “La Porciúncula” high school, academic period 2012 - 2013.
Lua i Stíl Chicago (17ú heag.)Pardo Ordóñez, Karen Gabriela. Active Strategies and Their Influence on the Development of Listening and Speaking Skills of the English Language with the Students of 8th, 9th and 10th Years of Basic Education at Unidad Educativa “La Porciúncula” High School, Academic Period 2012 - 2013. 2014.
Lua MLA (9ú heag.)Pardo Ordóñez, Karen Gabriela. Active Strategies and Their Influence on the Development of Listening and Speaking Skills of the English Language with the Students of 8th, 9th and 10th Years of Basic Education at Unidad Educativa “La Porciúncula” High School, Academic Period 2012 - 2013. 2014.