Brand Fonseca, K. A., Bermúdez Vásquez, C. A., Jiménez Olivares, Y., Garro Bustamante, D., & Mora Abarca, S. (2015). Instructional factors that influence the listening skill of intermediate level EFL students at Centro de Idiomas Universidad Nacional in Pérez Zeledón: A research study. Pérez Zeledón, C.R.: K. Brand F..

Brand Fonseca, Kevin Armando,, Carlos Andrés Bermúdez Vásquez, Yalile Jiménez Olivares, Diego Garro Bustamante, and Sofía Mora Abarca. Instructional Factors That Influence the Listening Skill of Intermediate Level EFL Students At Centro De Idiomas Universidad Nacional in Pérez Zeledón: A Research Study. Pérez Zeledón, C.R.: K. Brand F., 2015.

Brand Fonseca, Kevin Armando,, et al. Instructional Factors That Influence the Listening Skill of Intermediate Level EFL Students At Centro De Idiomas Universidad Nacional in Pérez Zeledón: A Research Study. Pérez Zeledón, C.R.: K. Brand F., 2015.