Martínez Peña, B. A., & Yunga Rodríguez, C. F. (2011). Motivational techniques to develop and strengthen the inter-learning of the English language in the students of the 9th year of basic education of the Machala house school and Juan Henriquez Coello high schools in the city of Machala during the academic period of 2010 - 2011.

Martínez Peña, Bairon Alexander, and Caty Fabiola Yunga Rodríguez. Motivational Techniques to Develop and Strengthen the Inter-learning of the English Language in the Students of the 9th Year of Basic Education of the Machala House School and Juan Henriquez Coello High Schools in the City of Machala During the Academic Period of 2010 - 2011. 2011.

Martínez Peña, Bairon Alexander, and Caty Fabiola Yunga Rodríguez. Motivational Techniques to Develop and Strengthen the Inter-learning of the English Language in the Students of the 9th Year of Basic Education of the Machala House School and Juan Henriquez Coello High Schools in the City of Machala During the Academic Period of 2010 - 2011. 2011.