Islamiyah, Wafa, Didi Suryadi, and M Akbar Gulvara. 2023. “Student Errors on Quadratic Function Story Problems Based on The Nolting Theory”. Edumatica : Jurnal Pendidikan Matematika 13 (3):191-202. https://doi.org/10.22437/edumatica.v13i03.26254.