A reference architecture for a national e-learning infrastructureSaay, Mohammad Salim; Norta, Alexander9th IEEE/ACM International Conference on Utility and Cloud Computing : UCC 2016 : 6-9 December 2016, Tongji University, Shanghai, China : proceedings2016 / p. 404-409 : illhttps://doi.org/10.1145/2996890.3007894