Evaluation of the Design and Didactic Development of Three Blended Learning Subjects. A Pilot Plan of the Faculty of Social Sciences at the Universidad Nacional, Costa Rica. Rev. Electr. Educare [Internet]. 2019 Jan. 1 [cited 2024 Apr. 28];23(1):1-16. Available from: https://www.revistas.una.ac.cr/index.php/EDUCARE/article/view/9221