Yuta Ueki, and Kei Ohnishi. “Visualizing Self- and Peer-Assessment Data by a Self-Organizing Map for Inducing Awareness in Learners”. International Journal of Computer Information Systems and Industrial Management Applications, vol. 8, Jan. 2016, p. 10, https://cspub-ijcisim.org/index.php/ijcisim/article/view/304.