Kolehmainen, Kati, Johannes Pernaa, and Maija Aksela. “Nanotechnology Teaching Material for Junior High School Chemistry Teaching: Design Research Approach”. LUMAT: International Journal on Math, Science and Technology Education 1, no. 1 (January 30, 2013): 17–28. Accessed December 5, 2024. https://journals.helsinki.fi/lumat/article/view/1122.