Aldana Vargas, M.F. and Osorio, L.A. 2019. Pedagogical Guidelines for the Design of Blended Learning Environments. EDUTECH REVIEW. International Education Technologies Review / Revista Internacional de Tecnologías Educativas. 6, 1 (Feb. 2019), 23–37. DOI:https://doi.org/10.37467/gka-revedutech.v6.2012.