Wilson, Scott, Oleg Liber, Mark Johnson, Phil Beauvoir, Paul Sharples, and Colin Milligan. “Personal Learning Environments: Challenging the Dominant Design of Educational Systems”. Journal of e-Learning and Knowledge Society 3, no. 2 (November 16, 2009). Accessed September 20, 2020. https://www.je-lks.org/ojs/index.php/Je-LKS_EN/article/view/29.