Mettas, A., and E. Norman. “A Grounded Theory Approach to the Development of a Framework for Researching children’s Decision-Making Skills Within Design and Technology Education”. Design and Technology Education: An International Journal, vol. 16, no. 2, May 2011, pp. 8-19, https://openjournals.ljmu.ac.uk/DesignTechnologyEducation/article/view/1730.