Barat Dastjerdi, N., and A. Ahmed. “Relationship Between the Use of Virtual Social Networks, Self-Directed Learning and Critical Thinking of Students in Developing Countries: A Comparative Study Between Iranian and Indian Undergraduate Students”. Australian Educational Computing, Vol. 34, no. 1, Nov. 2019, http://journal.acce.edu.au/index.php/AEC/article/view/204.