Nicchiotti, Bianca, ja Camilla Spagnolo. ”Perceived Difficulty of a Mathematical Task: Do Teachers and Students Have a Common View?”. LUMAT-B: International Journal on Math, Science and Technology Education 9, no. 2 (lokakuuta 1, 2024): 11. Viitattu marraskuuta 24, 2024. https://journals.helsinki.fi/lumatb/article/view/2483.