Idrovo Lamila, S. E. (2012). Incidence of the use of audiovisual materials in teaching and development of the four basic skills of english language students at Dr. Luis Felipe Borja public high school in la Troncal Province of Cañar for school year 2011-2012.

Idrovo Lamila, Sara Eulalia. Incidence of the Use of Audiovisual Materials in Teaching and Development of the Four Basic Skills of English Language Students At Dr. Luis Felipe Borja Public High School in La Troncal Province of Cañar for School Year 2011-2012. 2012.

Idrovo Lamila, Sara Eulalia. Incidence of the Use of Audiovisual Materials in Teaching and Development of the Four Basic Skills of English Language Students At Dr. Luis Felipe Borja Public High School in La Troncal Province of Cañar for School Year 2011-2012. 2012.