Nasr, Dr.Mona M., and Shimaa Ouf. 2012. “A Proposed Smart E-Learning System Using Cloud Computing Services: PaaS, IaaS and Web 3.0”. International Journal of Emerging Technologies in Learning (iJET) 7 (3):pp. 19-24. https://doi.org/10.3991/ijet.v7i3.2066.