Lucumi Useda, Paola, and Martha Alexandra González Castañeda. “Effect of the SIMAS Digital Environment in the Communication, Attitude and the Pedagogical Strategies Used by Teachers: Validation of Two Areas and Levels of the Education System”. EDUTECH REVIEW. International Education Technologies Review Revista Internacional De Tecnologías Educativas, vol. 4, no. 1, May 2017, doi:10.37467/gka-revedutech.v4.290.