Rigo Prado, D., M. Hernández Valdés, and G. Calero de la Paz. “Teachers Improvement for the Environmental Dimension Treatment for Sustainable Development”. Science and Interculturality, Vol. 28, no. 01, June 2021, pp. 28 -36, doi:https://doi.org/10.5377/rci.v28i01.11457.