Nouri, J., Ã…kerfeldt, A., Fors, U. and Selander, S. (2017) “Assessing Collaborative Problem Solving Skills in Technology-Enhanced Learning Environments – The PISA Framework and Modes of Communication”, International Journal of Emerging Technologies in Learning (iJET), 12(04), pp. pp. 163–174. doi: 10.3991/ijet.v12i04.6737.