1. De Medio, C., Limongelli, C., Sciarrone, F., Temperini, M.: MoodleREC: a recommendation system for creating courses using the moodle e-learning platform. Comput. Hum. Behav. 104, 106168 (2020)
2. Ehlers, U., Goertz, L., Hildebrandt, B., Pawlowski, J.M.: Quality in e-learning. Voc. Train. Berlin-Cedefop 29, 3–15 (2004)
3. Fernández-Pampillón Cesteros, A.M.: UNE 71362: calidad de los materiales educativos digitales. Revista AENOR (329) (2017)
4. Lecture Notes in Networks and Systems;BM Gutiérrez-Pérez,2020
5. Hadullo, K., Oboko, R., Omwenga, E.: A model for evaluating e-learning systems quality in higher education in developing countries. Int. J. Educ. Dev. ICT 13(2), 185 (2017)