Ouadoud, Mohammed, Mohamed Yassin Chkouri, Amel Nejjari, and Kamal Eddine El Kadiri. 2017. “Exploring a Recommendation System of Free E-Learning Platforms: Functional Architecture of the System”. International Journal of Emerging Technologies in Learning (iJET) 12 (02):pp. 219-226. https://doi.org/10.3991/ijet.v12i02.6381.