Adolfsson, C.-H. ., and J. . Håkansson. “Evaluating School Improvement Efforts – Pupils As Silent Result Suppliers, or Audible Improvement Resources?”. International Journal of Learning, Teaching and Educational Research, vol. 17, no. 6, June 2018, pp. 34-50, https://ijlter.net/index.php/ijlter/article/view/664.