Martínez, M. G., and L. G. Juárez Hernández. “Design and Validation of an Instrument to Evaluate Training in Sustainability in Higher Education Students”. IE Revista De Investigación Educativa De La REDIECH, vol. 10, no. 19, Oct. 2019, pp. 37 -54, doi:10.33010/ie_rie_rediech.v10i19.501.