Cabero-Almenara J, Valencia-Ortiz R, Palacios-Rodríguez A. E -learning in times of COVID-19. What have we learned? . ijeri [Internet]. 2022 Jun. 23 [cited 2024 Jul. 17];(17):14-26. Available from: https://upo.es/revistas/index.php/IJERI/article/view/6361