Pérez Rivera, S. E., Arriola Martínez, V. G., García Castro, V. M., Aguillón Rivera, F., & Contreras Cárcamo, M. S. (2020). The importance of the use of mobile devices and social media through practice in the learning process of a foreign language outside the classroom. Bachelor thesis, Universidad de El Salvador. Universidad de El Salvador: San Salvador.

Pérez Rivera, Sara Elizabeth, Vicky Graciela Arriola Martínez, Vanessa María García Castro, Francisca Aguillón Rivera, and Mauricio Salvador Contreras Cárcamo. The Importance of the Use of Mobile Devices and Social Media Through Practice in the Learning Process of a Foreign Language Outside the Classroom. Bachelor Thesis, Universidad De El Salvador. Universidad de El Salvador: San Salvador, 2020.

Pérez Rivera, Sara Elizabeth, et al. The Importance of the Use of Mobile Devices and Social Media Through Practice in the Learning Process of a Foreign Language Outside the Classroom. Bachelor Thesis, Universidad De El Salvador. Universidad de El Salvador: San Salvador, 2020.