E. Gouli, A. Gogoulou, and M. Grigoriadou. Proceedings of the ED-MEDIA 2006, World Conference on Educational Multimedia, Hypermedia & Telecommunications, (2006)
J. Matos, Y. Mor, R. Noss, and M. Santos. Fourth Congress of the European Society for Research in Mathematics Education (CERME-4), Sant Feliu de Guíxols, Spain, (2005)
B. Bannan-Ritland. Kelly, AE; Lesh, RA; Baek, JY Handbook of Design Research Methods in Education: Innovations in Science, Technology, Enginnering and Mathematics Learning and Teaching. New York: Routledge, (2008)
B. Schwarz, T. Dreyfus, N. Hadas, and R. Hershkowitz. the 28th international conference for the psychology of mathematics education, 4, Bergen, Norway, Bergen University College., (2004)
M. Warr, and P. Mishra. Society for Information Technology & Teacher Education International Conference, page 1011-1018. Association for the Advancement of Computing in Education (AACE), (2019)
O. Sagy, and Y. Kali. Proceedings of the 9th Chais Conference for the Study of Innovation and Learning Technologies: Learning in the Technological Era, (2014)
P. Goodyear, and L. Markauskaite. HERDSA (Higher Education Research and Development Society of Australasia) Conference: 32nd, 2009, Darwin, Australia, National Centre for Vocational Education Research (NCVER), (2009)