M. Griselda. International Journal of Trend in Scientific Research and Development, Special Issue (2nd International Congress of Engineering):
P26 - P32(Oktober 2017)
C. Cox, S. Harrison, und C. Hoadley. Educating learning technology designers: guiding and inspiring creators of innovative educational tools, Routledge, New York, NY, (2008)
M. Roussou, E. Kavalieratou, und M. Doulgeridis. IDC '07: Proceedings of the 6th international conference on Interaction design and children, Seite 77--80. New York, NY, USA, ACM, (2007)
M. Mariotti. Proceedings of the 22nd Conference of the International Group for the Psychology of Mathematics Education, 1, Seite 180--195. Stellenbosch, South Africa, PME, University of Stellenbosch, (Juli 1998)