Ríos Vázquez, Agustín, and Rosalía Romero Tena. “YouTube and Formal Math Learning. Perceptions of Students in COVID-19 Times”. Innoeduca. International Journal of Technology and Educational Innovation 8, no. 2 (December 1, 2022): 27–42. Accessed December 12, 2025. https://www.revistas.uma.es/index.php/innoeduca/article/view/14516.