González-Ramírez, Teresa, and Alién García-Hernández. “Design and Validation of a Questionnaire to Assess Student Satisfaction With Mathematics Study Materials”. International Journal of Instruction 15, no. 1 (January 1, 2022): 1–20. Accessed July 18, 2024. https://e-iji.net/ats/index.php/pub/article/view/431.