Kundi, G. M., and A. Nawaz. “From E-Learning 1.0 to E-Learning 2.0:Threats & Opportunities for Higher Education Institutions in the Developing Countries”. European Journal of Sustainable Development 3, no. 1 (February 1, 2014): 145. Accessed July 4, 2022. https://www.ecsdev.org/ojs/index.php/ejsd/article/view/118.